Knowledge (XXG)

Refractive error

Source đź“ť

448: 809:(refractive lens exchange). Full thickness corneal graft may be a final option for patients with advanced kerataconus although currently there is interest in new techniques that involve collagen crosslinking. As with any surgical procedure complications may arise post-operatively Post-operative monitoring is normally undertaken by the specialist ophthalmic surgical clinic and optometry services. Patients are usually informed pre-operatively about what to expect and where to go if they suspect complications. Any patient reporting pain and redness after surgery should be referred urgently to their ophthalmic surgeon. 842: 40: 599: 311: 668:, where vision may remain permanently blurry. Because young children typically do not complain of blurry vision, the American Academy of Pediatrics recommends that children have yearly vision screening starting at three years old so that unknown refractive errors or other ophthalmic conditions can be found and treated if deemed necessary by healthcare professionals. 624:) to measure objectively in which the person views a distant spot while the clinician changes the lenses held before the person's eye and watches the pattern of reflection of a small light shone on the eye. Following that "objective refraction" the clinician typically shows the person lenses of progressively higher or weaker powers in a process known as 940:
The number of people globally with significant refractive errors has been estimated at one to two billion. Rates vary between regions of the world with about 25% of Europeans and 80% of Asians affected. Near-sightedness is one of the most prevalent disorders of the eye. Rates among adults are between
510:
2 (RP2; OMIM 312600); Bornholm eye disease (OMIM 310460). Many genes that have been associated with refractive error are clustered into common biological networks involved in connective tissue growth and extracellular matrix organization. Although a large number of chromosomal localisations have been
433:
meaning the eye is in a state in which it can focus parallel rays of light (light from distant objects) on the retina, without using any accommodation. A distant object, in this case, is defined as an object located beyond 6 meters, or 20 feet, from the eye, since the light from those objects arrives
733:
Alternatively, many people choose to wear contact lenses. One style is hard contact lenses, which can distort the shape of the cornea to a desired shape. Another style, soft contact lenses, are made of silicone or hydrogel. Depending on the duration they are designed for, they may be worn daily or
700:
These are the most effective ways of correcting the refractive error. However, the availability and affordability of eyeglasses can present a difficulty for people in many low income settings of the world. Glasses also pose a challenge to children to whom they are prescribed to, due to children's
524:
has also been found to be a predictor of myopia in children. It has been reported that children with myopia spent significantly more time reading than non-myopic children who spent more time playing outdoors. Additionally, focusing on near objects for long periods of time - such as when reading,
278:
The number of people globally with refractive errors has been estimated at one to two billion. Rates vary between regions of the world with about 25% of Europeans and 80% of Asians affected. Near-sightedness is the most common disorder. Rates among adults are between 15 and 49% while rates among
679:
How refractive errors are treated or managed depends upon the amount and severity of the condition. Those who possess mild amounts of refractive error may elect to leave the condition uncorrected, particularly if the person is asymptomatic. For those who are symptomatic,
756:
Caused in response to the allergen present in the material from which the contact lens is made from. There is often discomfort in the eye after wearing and vision may be affected. Choosing the right lens material and changing it regularly might prevent conjunctivitis.
704:
As mentioned earlier refractive errors are because of the improper focusing of the light in the retina. Eyeglasses work as an added lens of the eye serving to bend the light to bring it to focus on the retina. Depending on the eyeglasses, they serve many functions.
339:
or nearsightedness. People with myopia typically have blurry vision when viewing distant objects because the eye is refracting more than necessary. Myopia can be corrected with a concave lens, which causes the divergence of light rays before they reach the
4628: 1450:
Lawrenson, John G; Shah, Rakhee; Huntjens, Byki; Downie, Laura E; Virgili, Gianni; Dhakal, Rohit; Verkicharla, Pavan K; Li, Dongfeng; Mavi, Sonia; Kernohan, Ashleigh; Li, Tianjing; Walline, Jeffrey J (2023-02-16). Cochrane Eyes and Vision Group (ed.).
945:. Presbyopia affects most people over the age of 35, and nearly 100% of people by the ages of 55–65. Uncorrected refractive error is responsible for visual impairment and disability for many people worldwide. It is one of the most common causes of 804:
Laser in situ keratomileusis (LASIK) and photo-refractive keratectomy (PRK) are popular procedures; while use of laser epithelial keratomileusis (LASEK) is increasing. Other surgical treatments for severe myopia include insertion of implants after
936:
Refractive Errors are the first common cause of Visual Impairment and second most common cause of visual loss . The assessment of Refractive Error is now done in DALY (Disability Adjusted Life Years) which showed an 8% increase from 1990 to 2019.
825:
Strategies being studied to slow worsening include adjusting working conditions, increasing the time children spend outdoors, and special types of contact lenses. In children special contact lenses appear to slow worsening of nearsightedness.
356:
or farsightedness. People with hyperopia have blurry vision when viewing near objects because the eye is unable to focus the light sufficiently. This can be corrected with convex lenses, which cause light rays to converge prior to hitting the
3009: 2990: 941:
15 and 49% while rates among children are between 1.2 and 42%. Far-sightedness more commonly affects young children, whose eyes have yet to grow to their full length, and the elderly, who have lost the ability to compensate with their
1351:"Global, regional, and national incidence, prevalence, and years lived with disability for 301 acute and chronic diseases and injuries in 188 countries, 1990-2013: a systematic analysis for the Global Burden of Disease Study 2013" 519:
In studies of the genetic predisposition of refractive error, there is a correlation between environmental factors and the risk of developing myopia. Myopia has been observed in individuals with visually intensive occupations.
1961:
Dutheil, Frédéric; Oueslati, Tharwa; Delamarre, Louis; Castanon, Joris; Maurin, Caroline; Chiambaretta, Frédéric; Baker, Julien S.; Ugbolue, Ukadike C.; Zak, Marek; Lakbar, Ines; Pereira, Bruno; Navel, Valentin (2023-01-03).
932:
It is estimated that at least 2 billion people in the world have refractive errors. The number of people globally with refractive errors that have not been corrected was estimated at 660 million (10 per 100 people) in 2013.
373:
is when the refractive power of the eye is not uniform across the surface of the cornea because of asymmetry. In other words, the eye focuses light more strongly in one direction than another, leading to distortion of the
789:
Various viral, bacterial, and fungal infection may be seen in the eye post-contact-lens wear, if proper lens hygiene is not maintained. Acanthamoeba are the most common infections in the people using contact lenses.
574:
This means that the refractive power of the eye matches what is needed to focus parallel rays of light onto the retina. A distant object is defined as an object located beyond 6 meters (20 feet) from the eye.
318:
Refractive error - sometimes called "ametropia" - is when the refractive power of an eye does not match the length of the eye, so the image is focused away from the central retina, instead of directly on it.
407:
This number denotes the strength of the lens needed to correct your vision. A "-" indicates nearsightedness while a "+" indicates farsightedness. Higher numbers indicate more power in either direction.
365:: When the flexibility of the lens declines, typically due to age. The individual would experience difficulty in near vision, often relieved by reading glasses, bifocal, or progressive lenses. 2080:
Owji, N; Khalili, MR; Bazrafkan, H; Heydari, M (September 2022). "Long-term outcome of refractive errors in patients with congenital blepharoptosis who have undergone ptosis surgery".
459:
There is evidence to suggest genetic predilection for refractive error. Individuals that have parents with certain refractive errors are more likely to have similar refractive errors.
244:
Near-sightedness is due to the length of the eyeball being too long, far-sightedness the eyeball too short, astigmatism, the cornea being the wrong shape, and presbyopia aging of the
1500:
Walline, Jeffrey J; Lindsley, Kristina B; Vedula, S Swaroop; Cotter, Susan A; Mutti, Donald O; Ng, Sueko M; Twelker, J. Daniel (2020-01-13). Cochrane Eyes and Vision Group (ed.).
47:
A correctly-focused eye (top), and two showing refractive error: in the middle image, the light is focused too far forward; in the bottom image, the focal point is behind the eye
1349:
Vos, Theo; Barber, Ryan M; Bell, Brad; Bertozzi-Villa, Amelia; Biryukov, Stan; Bolliger, Ian; et al. (Global Burden of Disease Study 2013 Collaborators) (22 August 2015).
2891: 676:
The management of refractive error is done post-diagnosis of the condition by either optometrists, ophthalmologists, refractionists, or ophthalmic medical practitioners.
4073: 773:
Caused by decreased oxygen delivery to the tissue compressed by the lens. Usually resolved after the removal of the lenses. Discomfort upon lens removal may be seen.
724:
The multifocal lenses can correct defective vision in multiple focus, for example: near-vision as well as far-vision. This are particularly beneficial for presbyobia.
817:
Atropine has believed to slow the progression of near-sightedness and is administered in combination with multifocal lenses. These, however, need further research.
796:
If redness, itching, and difficulty in vision develops, the use of the lenses should be stopped immediately and the consultation of ophthalmologists may be sought.
606:
Blurry vision may result from any number of conditions not necessarily related to refractive errors. The diagnosis of a refractive error is usually confirmed by an
229:, far-sightedness and presbyopia result in close objects being blurry, and astigmatism causes objects to appear stretched out or blurry. Other symptoms may include 2648:
Li, X; Friedman, IB; Medow, NB; Zhang, C (1 May 2017). "Update on Orthokeratology in Managing Progressive Myopia in Children: Efficacy, Mechanisms, and Concerns".
3470: 282:
The number of people with refractive errors that have not been corrected was estimated at 660 million (10 per 100 people) in 2013. Of these 9.5 million were
2812: 4142: 4068: 578:
When an object is located close to the eye, the rays of light from this object no longer approach the eye parallel to each other. Consequently, the eye must
2475: 466:) database has listed 261 genetic disorders in which myopia is one of the symptoms. Myopia may be present in heritable connective tissue disorders such as: 279:
children are between 1.2 and 42%. Far-sightedness more commonly affects young children and the elderly. Presbyopia affects most people over the age of 35.
2726:
Kandel H, Khadka J, Goggin M, Pesudovs K (2017). "Patient-reported outcomes for assessment of quality of life in refractive error: a systematic review".
2398:"Two strategies for correcting refractive errors in school students in Tanzania: randomised comparison, with implications for screening programmes" 3082: 712:
These are general over-the-counter glasses which can be worn for easier reading, especially for defective vision due to aging called presbyopia.
4090: 4085: 3910: 248:
such that it cannot change shape sufficiently. Some refractive errors occur more often among those whose parents are affected. Diagnosis is by
499: 3950: 642: 4063: 2598:
Lee, Jong-Jer; Fang, Po-Chiung; Yang, I-Hui; Chen, Chih-Hsin; Lin, Pei-Wen; Lin, Sue-Ann; Kuo, Hsi-Kung; Wu, Pei-Chang (February 2006).
2161: 1328: 4058: 3945: 3512: 3673: 1670: 1322: 1140: 447: 3813: 2499: 986: 3778: 2898: 4353: 3871: 3783: 2451: 1847:"Genome-wide meta-analyses of multiancestry cohorts identify multiple new susceptibility loci for refractive error and myopia" 3773: 3502: 2924:"Laser-assisted subepithelial keratectomy (LASEK) versus laser-assisted in-situ keratomileusis (LASIK) for correcting myopia" 587: 479: 3866: 3757: 3623: 2769:
Kandel H, Khadka J, Lundström M, Goggin M, Pesudovs K (2017). "Questionnaires for measuring refractive surgery outcomes".
845: 4264: 3955: 3940: 2834:
Hashemi, Hassan; Fotouhi, Akbar; Yekta, Abbasali; Pakzad, Reza; Ostadimoghaddam, Hadi; Khabazkhoob, Mehdi (2017-09-27).
2804: 2182: 3152: 3110: 3075: 1634: 1090: 969:
The yearly cost of correcting refractive errors is estimated at 3.9 to 7.2 billion dollars in the United States.
558: 378:
Children are typically born hyperopic and shift toward emmetropia or myopia as their eyes lengthen through childhood.
641:
is an instrument that is sometimes used in place of retinoscopy to objectively estimate a person's refractive error.
841: 4638: 4080: 3876: 3850: 3808: 3803: 3668: 3541: 3529: 3485: 4147: 3546: 4259: 4053: 3900: 3745: 3492: 634:
agents are frequently used to more accurately determine the amount of refractive error, particularly in children
554: 3798: 3769: 3393: 3358: 3032: 2549:
Shih, Yung-Feng; Hsiao, C. Kate; Chen, Chien-Jen; Chang, Ching-Wei; Hung, Por T.; Lin, Luke L.-K. (June 2001).
541:
In order to see a clear image, the eye must focus rays of light on to the light-sensing part of the eye - the
4269: 4023: 3823: 3343: 3336: 92: 1896:"The Association between Near Work Activities and Myopia in Children—A Systematic Review and Meta-Analysis" 737:
There are a number of complication associated with contact lenses. Typically the ones that are used daily.
4538: 4508: 4443: 4438: 4165: 3443: 3308: 3068: 646: 2551:"An intervention trial on efficacy of atropine and multi-focal glasses in controlling myopic progression" 4481: 4157: 1259:"Hyperopia: a meta-analysis of prevalence and a review of associated factors among school-aged children" 806: 626: 607: 2836:"Global and regional estimates of prevalence of refractive errors: Systematic review and meta-analysis" 4254: 3840: 3835: 3793: 3608: 3524: 1907: 958: 954: 526: 507: 452: 299: 295: 1453:"Interventions for myopia control in children: a living systematic review and network meta-analysis" 1211:
Pan, CW; Ramamurthy, D; Saw, SM (January 2012). "Worldwide prevalence and risk factors for myopia".
4633: 4559: 4433: 4233: 4116: 4108: 3896: 3860: 3845: 3700: 3480: 3260: 3013: 942: 638: 2211:
Schiefer, Ulrich; Kraus, Christina; Baumbach, Peter; UngewiĂź, Judith; Michels, Ralf (2016-10-14).
564:
When an eye focuses light correctly on to the retina when viewing distant objects, this is called
4170: 3920: 3828: 3752: 3705: 3517: 3453: 3438: 3298: 3247: 2751: 2708: 2433: 2378: 2320: 2272:"Refractive Errors in Children - American Association for Pediatric Ophthalmology and Strabismus" 2105: 1716: 1432: 1236: 689: 487: 272: 267:. Eyeglasses are the easiest and safest method of correction. Contact lenses can provide a wider 171: 68: 718:
They can correct only one form of defective vision, either far-sightedness or near-sightedness.
419:
This number notes the direction of the astigmatism and is written in degrees between 1 and 180.
39: 4513: 4410: 4175: 4035: 3818: 3475: 3381: 3043: 2953: 2873: 2855: 2786: 2743: 2700: 2665: 2627: 2619: 2580: 2572: 2425: 2417: 2370: 2362: 2312: 2250: 2232: 2097: 2062: 2044: 2003: 1985: 1943: 1925: 1876: 1824: 1768: 1708: 1666: 1660: 1558: 1531: 1482: 1424: 1380: 1318: 1290: 1228: 1190: 1136: 1041: 475: 467: 148: 52: 1312: 314:
Top: farsighted corrected using convex lens Bottom: nearsighted corrected using concave lens.
4301: 4137: 4112: 4045: 4011: 3930: 3561: 3551: 3448: 3303: 3190: 3180: 2943: 2935: 2863: 2847: 2778: 2735: 2692: 2657: 2611: 2562: 2409: 2354: 2304: 2240: 2224: 2153: 2089: 2052: 2034: 1993: 1975: 1933: 1915: 1866: 1858: 1814: 1806: 1758: 1750: 1700: 1521: 1513: 1472: 1464: 1414: 1370: 1362: 1280: 1270: 1220: 1180: 1172: 1031: 653: 483: 386: 327: 2892:"Global Disease Burden of Uncorrected Refractive Error Among Adolescents From 1990 to 2019" 2271: 2183:"NETRA: Inverse Shack-Hartmann Wavefront Sensor using High Resolution Mobile Phone Display" 664:
When refractive errors in children are not treated, the child may be at risk of developing
652:
Vision defects caused by refractive error can be distinguished from other problems using a
4623: 4368: 4332: 4296: 3915: 3740: 3727: 3661: 3618: 3536: 3348: 3280: 3200: 3185: 1894:
Huang, Hsiu-Mei; Chang, Dolly Shuo-Teh; Wu, Pei-Chang (2015-10-20). Jhanji, Vishal (ed.).
830: 611: 530: 471: 400:
Refractive errors are typically measured using three numbers: sphere, cylinder, and axis.
344: 331: 268: 249: 245: 153: 1911: 335:: When the refractive power is too strong for the length of the eyeball, this is called 4598: 4450: 4395: 4238: 4006: 3935: 3717: 3687: 3633: 3587: 3458: 3331: 3265: 3255: 2948: 2923: 2868: 2835: 2245: 2212: 2057: 2022: 1998: 1963: 1938: 1895: 1871: 1846: 1819: 1794: 1763: 1738: 1526: 1501: 1477: 1452: 1375: 1350: 1285: 1258: 1185: 1160: 1036: 1019: 993: 685: 598: 529:
and higher levels of education have also been reported to be a risk factor for myopia.
348: 260: 226: 191: 167: 3026: 3022: 3018: 2567: 2550: 2128: 1704: 1366: 781:
New blood vessels may form in the iris region and the limbus. This may impair vision.
602:
A doctor uses a trial frame and trial lenses to measure the person's refractive error.
4617: 4518: 4373: 4313: 4030: 3978: 3925: 3855: 3764: 3651: 3628: 3556: 3465: 3270: 3175: 2396:
Wedner, S.; Masanja, H.; Bowman, R.; Todd, J.; Bowman, R.; Gilbert, C. (2008-01-01).
2324: 2109: 1862: 1810: 1754: 1720: 1224: 394: 382: 230: 77: 73: 57: 2755: 2712: 1436: 1240: 4383: 4211: 3592: 3507: 3415: 3293: 3288: 3233: 3228: 2939: 2437: 2382: 1517: 1468: 434:
as essentially parallel rays when considering the limitations of human perception.
2524: 2093: 322:
Types of refractive error include myopia, hyperopia, presbyopia, and astigmatism.
3037: 2782: 2739: 2696: 2661: 1920: 1582:"Anisometropia - American Association for Pediatric Ophthalmology and Strabismus" 1419: 1402: 423:
An eye that has no refractive error when viewing distant objects is said to have
4582: 4533: 4476: 4471: 4428: 4406: 4317: 4308: 4228: 4206: 4018: 3990: 3788: 3656: 3497: 3318: 3195: 3147: 3094: 1257:
Castagno, VD; Fassa, AG; Carret, ML; Vilela, MA; Meucci, RD (23 December 2014).
946: 631: 620: 615: 390: 369: 287: 218: 119: 16:
Problem with focusing light accurately on the retina due to the shape of the eye
3048: 2851: 1550: 352:: When the refractive power is too weak for the length of the eyeball, one has 310: 4503: 4466: 4390: 4378: 4322: 4283: 4189: 4125: 4104: 3994: 3353: 3218: 3003: 2999: 2228: 1317:(5 ed.). St. Louis (Miss.): Butterworth Heinemann, Elsevier. p. 70. 566: 546: 511:
associated with myopia (MYP1-MYP17), few specific genes have been identified.
495: 491: 425: 361: 238: 222: 123: 85: 4629:
Disorders of ocular muscles, binocular movement, accommodation and refraction
2859: 2623: 2576: 2421: 2366: 2316: 2308: 2236: 2048: 1989: 1929: 1275: 478:(type 1, OMIM 108300; type 2, OMIM 604841). Myopia has also been reported in 4554: 4528: 4402: 4348: 4336: 4221: 4216: 4201: 4197: 3735: 3433: 3410: 3223: 3170: 3165: 3142: 3060: 2599: 2413: 2342: 2341:
Cochrane, Gillian M.; Toit, Rènée du; Mesurier, Richard T. Le (2010-04-12).
2190: 665: 353: 283: 234: 214: 115: 101: 97: 81: 61: 2957: 2877: 2790: 2747: 2704: 2669: 2631: 2615: 2584: 2429: 2374: 2296: 2254: 2101: 2066: 2007: 1980: 1947: 1880: 1828: 1772: 1712: 1581: 1562: 1535: 1486: 1428: 1384: 1294: 1232: 1194: 1098: 1045: 4593: 4358: 3892: 3695: 3326: 2039: 1795:"Nature and Nurture: the complex genetics of myopia and refractive error" 1739:"Nature and Nurture: the complex genetics of myopia and refractive error" 1176: 950: 291: 256: 163: 614:
using a large number of lenses of different optical powers, and often a
525:
looking at close screens, or writing - has been associated with myopia.
4420: 4363: 3905: 3712: 3643: 3613: 3603: 3210: 681: 521: 264: 133: 2982: 2397: 2358: 1606: 765:
Caused by a foreign body, dust, sand, or grit trapped under the lens.
4523: 3425: 3402: 3122: 2994: 583: 550: 542: 336: 210: 206: 198: 137: 111: 286:
due to the refractive error. It is one of the most common causes of
2154:"Frequently Asked Questions: How do you measure refractive errors?" 4495: 840: 656:, which will improve vision only in the case of refractive error. 597: 582:
its refractive power to bring those rays of light together on the
545:, which is located in the back of the eye. This focusing - called 446: 309: 194: 2187:
Vitor F. Pamplona, Ankit Mohan, Manuel M. Oliveira, Ramesh Raskar
1968:
International Journal of Environmental Research and Public Health
3575: 3137: 1403:"The age-specific prevalence of myopia in Asia: a meta-analysis" 503: 463: 141: 4580: 3976: 3379: 3108: 3064: 2600:"Prevention of Myopia Progression with 0.05% Atropine Solution" 1401:
Pan, CW; Dirani, M; Cheng, CY; Wong, TY; Saw, SM (March 2015).
734:
may be worn for an extended period of time, such as for weeks.
202: 1964:"Myopia and Near Work: A Systematic Review and Meta-Analysis" 2476:"Eyeglasses for Refractive Errors | National Eye Institute" 701:
tendency to not wear them as consistently as recommended.
1788: 1786: 1784: 1782: 1502:"Interventions to slow progression of myopia in children" 2683:
Walline, JJ (January 2016). "Myopia Control: A Review".
1732: 1730: 271:; however they are associated with a risk of infection. 590:, and is accomplished by the eye thickening the lens. 413:
This number denotes the amount of astigmatism, if any.
1691:
Morgan, Ian; Kyoko Ohno-Matsui (May 2012). "Myopia".
225:. Near-sightedness results in far away objects being 2972: 848:
per 100,000 people due to refractive errors in 2004.
4547: 4494: 4459: 4419: 4331: 4282: 4247: 4188: 4156: 4124: 4103: 4044: 3989: 3885: 3726: 3686: 3642: 3583: 3574: 3424: 3401: 3392: 3317: 3279: 3246: 3209: 3130: 3121: 2976: 2500:"10 Cataract Surgery Side Effects, and How to Cope" 2452:"Pediatric Ophthalmology, Optometry and Orthoptics" 1686: 1684: 1682: 177: 159: 147: 129: 107: 91: 67: 51: 29: 24: 833:impact of refractive errors and their correction. 4069:arteritic anterior (AAION or arteritic AION) 2650:Journal of Pediatric Ophthalmology and Strabismus 2336: 2334: 645:and its inverse can also be used to characterize 557:, which are located at the front of the eye, the 209:. The most common types of refractive error are 2604:Journal of Ocular Pharmacology and Therapeutics 1557:, Treasure Island (FL): StatPearls Publishing, 2129:"Eye Anatomy: Parts of the Eye and How We See" 829:A number of questionnaires exist to determine 649:in a higher level of resolution and accuracy. 3076: 275:permanently changes the shape of the cornea. 8: 4143:Chronic progressive external ophthalmoplegia 1659:Bope, Edward T.; Kellerman, Rick D. (2015). 1131:Denniston, Alastair; Murray, Philip (2018). 3471:Thygeson's superficial punctate keratopathy 4577: 4341: 4130: 4121: 3999: 3986: 3973: 3580: 3398: 3389: 3376: 3127: 3118: 3105: 3083: 3069: 3061: 2973: 2805:"WHO Disease and injury country estimates" 1396: 1394: 1085: 1083: 1081: 1079: 1077: 1075: 38: 21: 2947: 2867: 2643: 2641: 2566: 2244: 2056: 2038: 1997: 1979: 1937: 1919: 1870: 1818: 1762: 1665:. Elsevier Health Sciences. p. 354. 1551:"Childhood Myopia and Ocular Development" 1525: 1476: 1418: 1374: 1344: 1342: 1340: 1338: 1306: 1304: 1284: 1274: 1252: 1250: 1206: 1204: 1184: 1154: 1152: 1126: 1124: 1122: 1120: 1118: 1116: 1073: 1071: 1069: 1067: 1065: 1063: 1061: 1059: 1057: 1055: 1035: 1024:Bulletin of the World Health Organization 462:The Online Mendelian Inheritance in Man ( 1635:"How to Read an Eyeglasses Prescription" 1549:Saluja, Gunjan; Kaur, Kirandeep (2023), 739: 2021:Foster, P J; Jiang, Y (February 2014). 1506:Cochrane Database of Systematic Reviews 1457:Cochrane Database of Systematic Reviews 1135:(4 ed.). OUP Oxford. p. 926. 978: 692:, or a combination are typically used. 2266: 2264: 1159:Foster, PJ; Jiang, Y (February 2014). 753:Conjunctivitis (giant papillary form) 2922:Kuryan J, Cheema A, Chuck RS (2017). 2123: 2121: 2119: 2082:Clinical & Experimental Optometry 1840: 1838: 1793:Wojcienchowski, Robert (April 2011). 1629: 1627: 1213:Ophthalmic & Physiological Optics 500:congenital stationary night blindness 498:, MYP1) such as: autosomal recessive 255:Refractive errors are corrected with 7: 3951:Familial exudative vitreoretinopathy 1737:Wojciechowski, Robert (April 2011). 987:"Care of the Patient with Amblyopia" 4074:non-arteritic anterior (NAION) 3911:Leber's hereditary optic neuropathy 745:Complications of contact lens wear 533:can also induce refractive errors. 3946:Persistent tunica vasculosa lentis 2217:Deutsches Ă„rzteblatt International 2158:The New York Eye And Ear Infirmary 14: 3674:Polypoidal choroidal vasculopathy 2568:10.1034/j.1600-0420.2001.790304.x 2555:Acta Ophthalmologica Scandinavica 2529:American Academy of Ophthalmology 2504:American Academy of Ophthalmology 2343:"Management of refractive errors" 2133:American Academy of Ophthalmology 1639:American Academy of Ophthalmology 715:Single vision prescription lenses 385:, when the two eyes have unequal 3779:Central retinal artery occlusion 2840:Journal of Current Ophthalmology 2402:British Journal of Ophthalmology 1863:10.1111/j.1399-0004.2010.01592.x 1811:10.1111/j.1399-0004.2010.01592.x 1755:10.1111/j.1399-0004.2010.01592.x 1331:from the original on 2016-08-15. 1225:10.1111/j.1475-1313.2011.00884.x 1133:Oxford Handbook of Ophthalmology 3784:Branch retinal artery occlusion 3513:Terrien's marginal degeneration 2815:from the original on 2009-11-11 2164:from the original on 2006-09-01 1091:"Facts About Refractive Errors" 1018:Dandona, R; Dandona, L (2001). 643:Shack–Hartmann wavefront sensor 397:power between the eyes differ. 3814:Bietti's crystalline dystrophy 3774:Central retinal vein occlusion 3503:Pellucid marginal degeneration 2940:10.1002/14651858.CD011080.pub2 1845:Barnes, Katherine (Feb 2013). 1518:10.1002/14651858.CD004916.pub4 1469:10.1002/14651858.CD014758.pub2 1097:. October 2010. Archived from 1: 3867:Vitelliform macular dystrophy 3758:Posterior vitreous detachment 3624:Persistent pupillary membrane 2771:Journal of Refractive Surgery 2094:10.1080/08164622.2021.1973344 1705:10.1016/S0140-6736(12)60272-4 1367:10.1016/s0140-6736(15)60692-4 549:- is performed mainly by the 4354:Leber's congenital amaurosis 4265:Internuclear ophthalmoplegia 3956:Vogt-Koyanagi-Harada disease 3941:Persistent fetal vasculature 3872:Leber's congenital amaurosis 2783:10.3928/1081597X-20170310-01 2740:10.1097/OPX.0000000000001143 2728:Optometry and Vision Science 2697:10.1097/ICL.0000000000000207 2662:10.3928/01913913-20170106-01 1921:10.1371/journal.pone.0140419 1420:10.1097/opx.0000000000000516 1407:Optometry and Vision Science 1311:Grosvenor, Theodore (2007). 1020:"Refractive error blindness" 3153:Meibomian gland dysfunction 2525:"LASIK — Laser Eye Surgery" 1662:Conn's Current Therapy 2016 4655: 3877:Birdshot chorioretinopathy 3851:Central serous retinopathy 3669:Focal choroidal excavation 3542:Corneal neovascularization 3359:Subconjunctival hemorrhage 2928:Cochrane Database Syst Rev 2852:10.1016/j.joco.2017.08.009 2295:Adam, Henry (2020-04-02). 381:Other terminology include 4589: 4576: 4344: 4260:Convergence insufficiency 4133: 4002: 3985: 3972: 3901:Primary juvenile glaucoma 3746:Cytomegalovirus retinitis 3388: 3375: 3161: 3117: 3104: 3095:Diseases of the human eye 2809:World Health Organization 2229:10.3238/arztebl.2016.0693 46: 37: 3770:Ocular ischemic syndrome 2309:10.1542/aap.ppcqr.396022 2023:"Epidemiology of myopia" 1276:10.1186/1471-2415-14-163 1161:"Epidemiology of myopia" 201:due to the shape of the 4270:One and a half syndrome 4024:Foster Kennedy syndrome 2414:10.1136/bjo.2007.119198 1607:"Aniseikonia - EyeWiki" 482:caused by mutations in 4509:Argyll Robertson pupil 3309:Periorbital cellulitis 2685:Eye & Contact Lens 2616:10.1089/jop.2006.22.41 1981:10.3390/ijerph20010875 1314:Primary care optometry 929: 618:(a procedure entitled 603: 456: 451:Fundus of person with 315: 136:length, problems with 4482:Scintillating scotoma 4148:Kearns–Sayre syndrome 4091:Toxic and nutritional 4064:posterior (PION) 3547:Kayser–Fleischer ring 2301:Pediatric Care Online 844: 807:clear lens extraction 627:subjective refraction 608:eye care professional 601: 450: 313: 4255:Conjugate gaze palsy 4126:Paralytic strabismus 4059:anterior (AION) 3841:Retinitis pigmentosa 3836:Macular degeneration 3609:Intermediate uveitis 3525:Keratoconjunctivitis 2040:10.1038/eye.2013.280 1177:10.1038/eye.2013.280 959:vitamin A deficiency 955:macular degeneration 943:accommodation system 527:Socioeconomic status 508:retinitis pigmentosa 486:involved in retinal 453:retinitis pigmentosa 300:vitamin A deficiency 296:macular degeneration 140:shape, aging of the 4560:Childhood blindness 4539:Parinaud's syndrome 4109:Extraocular muscles 3897:Ocular hypertension 3861:Epiretinal membrane 3846:Retinal haemorrhage 3701:Congenital cataract 2456:Asian Eye Institute 2213:"Refractive errors" 1912:2015PLoSO..1040419H 1699:(9827): 1739–1748. 926: More than 800 860: Less than 100 778:Neovascularization 741: 639:automated refractor 474:(OMIM 154700); and 4086:Leber's hereditary 3753:Retinal detachment 3706:Childhood cataract 3518:Post-LASIK ectasia 3299:Orbital cellulitis 3248:Lacrimal apparatus 2297:"Vision Screening" 930: 740: 690:refractive surgery 604: 480:X-linked disorders 457: 393:which is when the 316: 273:Refractive surgery 197:accurately on the 190:is a problem with 172:refractive surgery 4639:Corrective lenses 4611: 4610: 4607: 4606: 4572: 4571: 4568: 4567: 4514:Marcus Gunn pupil 4490: 4489: 4411:Visual impairment 4278: 4277: 4184: 4183: 4171:Fourth-nerve (IV) 4099: 4098: 4036:Optic disc drusen 3968: 3967: 3964: 3963: 3682: 3681: 3570: 3569: 3476:Corneal dystrophy 3371: 3370: 3367: 3366: 3242: 3241: 3058: 3057: 2734:(12): 1102–1119. 2359:10.1136/bmj.c1711 1851:Clinical Genetics 1799:Clinical Genetics 1361:(9995): 743–800. 1263:BMC Ophthalmology 999:on 19 August 2016 813:Medical treatment 794: 793: 762:Corneal abrasion 721:Multifocal lenses 586:. This is called 537:Normal Refraction 476:Stickler syndrome 468:Knobloch syndrome 185: 184: 181:~1.5 billion 149:Diagnostic method 19:Medical condition 4646: 4578: 4342: 4333:Vision disorders 4292:Refractive error 4234:Brown's syndrome 4190:Other strabismus 4176:Sixth-nerve (VI) 4166:Oculomotor (III) 4138:Ophthalmoparesis 4131: 4122: 4113:Binocular vision 4046:Optic neuropathy 4012:optic papillitis 4000: 3987: 3974: 3863:(Macular pucker) 3581: 3562:Band keratopathy 3399: 3390: 3377: 3304:Orbital lymphoma 3191:Blepharophimosis 3181:Blepharochalasis 3128: 3119: 3106: 3085: 3078: 3071: 3062: 2974: 2962: 2961: 2951: 2919: 2913: 2912: 2910: 2909: 2903: 2897:. Archived from 2896: 2888: 2882: 2881: 2871: 2831: 2825: 2824: 2822: 2820: 2801: 2795: 2794: 2766: 2760: 2759: 2723: 2717: 2716: 2680: 2674: 2673: 2645: 2636: 2635: 2595: 2589: 2588: 2570: 2546: 2540: 2539: 2537: 2536: 2521: 2515: 2514: 2512: 2511: 2496: 2490: 2489: 2487: 2486: 2472: 2466: 2465: 2463: 2462: 2448: 2442: 2441: 2393: 2387: 2386: 2338: 2329: 2328: 2292: 2286: 2285: 2283: 2282: 2268: 2259: 2258: 2248: 2208: 2202: 2201: 2199: 2198: 2189:. Archived from 2179: 2173: 2172: 2170: 2169: 2150: 2144: 2143: 2141: 2140: 2125: 2114: 2113: 2077: 2071: 2070: 2060: 2042: 2018: 2012: 2011: 2001: 1983: 1958: 1952: 1951: 1941: 1923: 1906:(10): e0140419. 1891: 1885: 1884: 1874: 1842: 1833: 1832: 1822: 1790: 1777: 1776: 1766: 1734: 1725: 1724: 1688: 1677: 1676: 1656: 1650: 1649: 1647: 1646: 1631: 1622: 1621: 1619: 1617: 1603: 1597: 1596: 1594: 1592: 1578: 1572: 1571: 1570: 1569: 1546: 1540: 1539: 1529: 1497: 1491: 1490: 1480: 1447: 1441: 1440: 1422: 1398: 1389: 1388: 1378: 1346: 1333: 1332: 1308: 1299: 1298: 1288: 1278: 1254: 1245: 1244: 1208: 1199: 1198: 1188: 1156: 1147: 1146: 1128: 1111: 1110: 1108: 1106: 1087: 1050: 1049: 1039: 1015: 1009: 1008: 1006: 1004: 998: 992:. Archived from 991: 983: 925: 919: 913: 907: 901: 895: 889: 883: 877: 871: 865: 859: 853: 742: 654:pinhole occluder 559:anterior segment 506:; OMIM 310500); 387:refractive power 211:near-sightedness 188:Refractive error 112:Near-sightedness 42: 33:Refraction error 25:Refractive error 22: 4654: 4653: 4649: 4648: 4647: 4645: 4644: 4643: 4614: 4613: 4612: 4603: 4585: 4564: 4543: 4486: 4455: 4415: 4369:Color blindness 4335: 4327: 4274: 4248:Other binocular 4243: 4180: 4152: 4115: 4111: 4107: 4095: 4040: 3993: 3981: 3960: 3916:Ocular hypotony 3881: 3741:Chorioretinitis 3722: 3678: 3662:Chorioretinitis 3638: 3619:Rubeosis iridis 3597: 3566: 3537:Corneal opacity 3493:Corneal ectasia 3420: 3384: 3363: 3349:Pseudopterygium 3313: 3275: 3238: 3205: 3201:Ankyloblepharon 3157: 3113: 3100: 3099: 3089: 3059: 3054: 3053: 2985: 2971: 2966: 2965: 2934:(2): CD011080. 2921: 2920: 2916: 2907: 2905: 2901: 2894: 2890: 2889: 2885: 2833: 2832: 2828: 2818: 2816: 2803: 2802: 2798: 2768: 2767: 2763: 2725: 2724: 2720: 2682: 2681: 2677: 2647: 2646: 2639: 2597: 2596: 2592: 2548: 2547: 2543: 2534: 2532: 2523: 2522: 2518: 2509: 2507: 2498: 2497: 2493: 2484: 2482: 2480:www.nei.nih.gov 2474: 2473: 2469: 2460: 2458: 2450: 2449: 2445: 2395: 2394: 2390: 2340: 2339: 2332: 2294: 2293: 2289: 2280: 2278: 2270: 2269: 2262: 2223:(41): 693–702. 2210: 2209: 2205: 2196: 2194: 2181: 2180: 2176: 2167: 2165: 2152: 2151: 2147: 2138: 2136: 2127: 2126: 2117: 2079: 2078: 2074: 2020: 2019: 2015: 1960: 1959: 1955: 1893: 1892: 1888: 1844: 1843: 1836: 1792: 1791: 1780: 1736: 1735: 1728: 1690: 1689: 1680: 1673: 1658: 1657: 1653: 1644: 1642: 1633: 1632: 1625: 1615: 1613: 1611:eyewiki.aao.org 1605: 1604: 1600: 1590: 1588: 1580: 1579: 1575: 1567: 1565: 1548: 1547: 1543: 1512:(9): CD004916. 1499: 1498: 1494: 1463:(2): CD014758. 1449: 1448: 1444: 1400: 1399: 1392: 1348: 1347: 1336: 1325: 1310: 1309: 1302: 1256: 1255: 1248: 1210: 1209: 1202: 1158: 1157: 1150: 1143: 1130: 1129: 1114: 1104: 1102: 1101:on 28 July 2016 1089: 1088: 1053: 1017: 1016: 1012: 1002: 1000: 996: 989: 985: 984: 980: 975: 967: 928: 927: 923: 921: 917: 915: 911: 909: 905: 903: 899: 897: 893: 891: 887: 885: 881: 879: 875: 873: 869: 867: 863: 861: 857: 855: 851: 839: 831:quality of life 823: 815: 802: 731: 709:Reading glasses 698: 674: 662: 647:eye aberrations 612:eye examination 596: 539: 517: 472:Marfan syndrome 470:(OMIM 267750); 445: 440: 332:Nearsightedness 308: 269:field of vision 250:eye examination 246:lens of the eye 215:far-sightedness 154:Eye examination 116:far-sightedness 20: 17: 12: 11: 5: 4652: 4650: 4642: 4641: 4636: 4631: 4626: 4616: 4615: 4609: 4608: 4605: 4604: 4602: 4601: 4599:Onchocerciasis 4596: 4590: 4587: 4586: 4581: 4574: 4573: 4570: 4569: 4566: 4565: 4563: 4562: 4557: 4551: 4549: 4545: 4544: 4542: 4541: 4536: 4531: 4526: 4521: 4516: 4511: 4506: 4500: 4498: 4492: 4491: 4488: 4487: 4485: 4484: 4479: 4474: 4469: 4463: 4461: 4457: 4456: 4454: 4453: 4451:Quadrantanopia 4448: 4447: 4446: 4441: 4436: 4425: 4423: 4417: 4416: 4414: 4413: 4400: 4399: 4398: 4396:Oguchi disease 4388: 4387: 4386: 4381: 4376: 4366: 4361: 4356: 4351: 4345: 4339: 4329: 4328: 4326: 4325: 4320: 4311: 4306: 4305: 4304: 4299: 4288: 4286: 4280: 4279: 4276: 4275: 4273: 4272: 4267: 4262: 4257: 4251: 4249: 4245: 4244: 4242: 4241: 4239:Duane syndrome 4236: 4231: 4226: 4225: 4224: 4219: 4209: 4204: 4194: 4192: 4186: 4185: 4182: 4181: 4179: 4178: 4173: 4168: 4162: 4160: 4154: 4153: 4151: 4150: 4145: 4140: 4134: 4128: 4119: 4101: 4100: 4097: 4096: 4094: 4093: 4088: 4083: 4078: 4077: 4076: 4071: 4066: 4061: 4050: 4048: 4042: 4041: 4039: 4038: 4033: 4028: 4027: 4026: 4016: 4015: 4014: 4007:Optic neuritis 4003: 3997: 3983: 3982: 3977: 3970: 3969: 3966: 3965: 3962: 3961: 3959: 3958: 3953: 3948: 3943: 3938: 3936:Phthisis bulbi 3933: 3928: 3923: 3918: 3913: 3908: 3903: 3889: 3887: 3883: 3882: 3880: 3879: 3874: 3869: 3864: 3858: 3853: 3848: 3843: 3838: 3833: 3832: 3831: 3826: 3821: 3819:Coats' disease 3816: 3811: 3809:of prematurity 3806: 3801: 3796: 3786: 3781: 3776: 3767: 3762: 3761: 3760: 3750: 3749: 3748: 3743: 3732: 3730: 3724: 3723: 3721: 3720: 3718:Ectopia lentis 3715: 3710: 3709: 3708: 3703: 3692: 3690: 3684: 3683: 3680: 3679: 3677: 3676: 3671: 3666: 3665: 3664: 3654: 3648: 3646: 3640: 3639: 3637: 3636: 3631: 3626: 3621: 3616: 3611: 3606: 3600: 3598: 3596: 3595: 3590: 3584: 3578: 3576:Vascular tunic 3572: 3571: 3568: 3567: 3565: 3564: 3559: 3554: 3549: 3544: 3539: 3534: 3533: 3532: 3522: 3521: 3520: 3515: 3510: 3505: 3500: 3490: 3489: 3488: 3483: 3473: 3468: 3463: 3462: 3461: 3459:Photokeratitis 3456: 3451: 3446: 3441: 3430: 3428: 3422: 3421: 3419: 3418: 3413: 3407: 3405: 3396: 3386: 3385: 3380: 3373: 3372: 3369: 3368: 3365: 3364: 3362: 3361: 3356: 3351: 3346: 3341: 3340: 3339: 3332:Conjunctivitis 3329: 3323: 3321: 3315: 3314: 3312: 3311: 3306: 3301: 3296: 3291: 3285: 3283: 3277: 3276: 3274: 3273: 3268: 3266:Dacryocystitis 3263: 3258: 3256:Dacryoadenitis 3252: 3250: 3244: 3243: 3240: 3239: 3237: 3236: 3231: 3226: 3221: 3215: 3213: 3207: 3206: 3204: 3203: 3198: 3193: 3188: 3183: 3178: 3173: 3168: 3162: 3159: 3158: 3156: 3155: 3150: 3145: 3140: 3134: 3132: 3125: 3115: 3114: 3109: 3102: 3101: 3098: 3097: 3091: 3090: 3088: 3087: 3080: 3073: 3065: 3056: 3055: 3052: 3051: 3040: 3029: 3006: 2986: 2981: 2980: 2978: 2977:Classification 2970: 2969:External links 2967: 2964: 2963: 2914: 2883: 2826: 2796: 2777:(6): 416–424. 2761: 2718: 2675: 2656:(3): 142–148. 2637: 2590: 2561:(3): 233–236. 2541: 2516: 2491: 2467: 2443: 2388: 2330: 2287: 2260: 2203: 2174: 2145: 2115: 2088:(7): 715–720. 2072: 2033:(2): 202–208. 2013: 1953: 1886: 1834: 1805:(4): 301–320. 1778: 1749:(4): 301–320. 1726: 1678: 1671: 1651: 1623: 1598: 1573: 1541: 1492: 1442: 1390: 1334: 1323: 1300: 1246: 1200: 1148: 1141: 1112: 1051: 1010: 977: 976: 974: 971: 966: 963: 922: 916: 910: 904: 898: 892: 886: 880: 874: 868: 862: 856: 850: 849: 838: 835: 822: 819: 814: 811: 801: 798: 792: 791: 787: 783: 782: 779: 775: 774: 771: 770:Corneal edema 767: 766: 763: 759: 758: 754: 750: 749: 746: 730: 729:Contact lenses 727: 726: 725: 722: 719: 716: 713: 710: 697: 694: 686:contact lenses 673: 670: 661: 658: 595: 592: 538: 535: 531:Blepharoptosis 516: 513: 444: 441: 439: 436: 421: 420: 414: 408: 376: 375: 366: 358: 349:Farsightedness 341: 307: 306:Classification 304: 261:contact lenses 183: 182: 179: 175: 174: 168:contact lenses 161: 157: 156: 151: 145: 144: 131: 127: 126: 109: 105: 104: 95: 89: 88: 71: 65: 64: 55: 49: 48: 44: 43: 35: 34: 31: 27: 26: 18: 15: 13: 10: 9: 6: 4: 3: 2: 4651: 4640: 4637: 4635: 4632: 4630: 4627: 4625: 4622: 4621: 4619: 4600: 4597: 4595: 4592: 4591: 4588: 4584: 4579: 4575: 4561: 4558: 4556: 4553: 4552: 4550: 4546: 4540: 4537: 4535: 4532: 4530: 4527: 4525: 4522: 4520: 4519:Adie syndrome 4517: 4515: 4512: 4510: 4507: 4505: 4502: 4501: 4499: 4497: 4493: 4483: 4480: 4478: 4475: 4473: 4470: 4468: 4465: 4464: 4462: 4458: 4452: 4449: 4445: 4442: 4440: 4437: 4435: 4432: 4431: 4430: 4427: 4426: 4424: 4422: 4418: 4412: 4408: 4404: 4401: 4397: 4394: 4393: 4392: 4389: 4385: 4382: 4380: 4377: 4375: 4374:Achromatopsia 4372: 4371: 4370: 4367: 4365: 4362: 4360: 4357: 4355: 4352: 4350: 4347: 4346: 4343: 4340: 4338: 4334: 4330: 4324: 4321: 4319: 4315: 4314:Anisometropia 4312: 4310: 4307: 4303: 4300: 4298: 4295: 4294: 4293: 4290: 4289: 4287: 4285: 4281: 4271: 4268: 4266: 4263: 4261: 4258: 4256: 4253: 4252: 4250: 4246: 4240: 4237: 4235: 4232: 4230: 4227: 4223: 4220: 4218: 4215: 4214: 4213: 4210: 4208: 4205: 4203: 4199: 4196: 4195: 4193: 4191: 4187: 4177: 4174: 4172: 4169: 4167: 4164: 4163: 4161: 4159: 4155: 4149: 4146: 4144: 4141: 4139: 4136: 4135: 4132: 4129: 4127: 4123: 4120: 4118: 4117:Accommodation 4114: 4110: 4106: 4102: 4092: 4089: 4087: 4084: 4082: 4079: 4075: 4072: 4070: 4067: 4065: 4062: 4060: 4057: 4056: 4055: 4052: 4051: 4049: 4047: 4043: 4037: 4034: 4032: 4031:Optic atrophy 4029: 4025: 4022: 4021: 4020: 4017: 4013: 4010: 4009: 4008: 4005: 4004: 4001: 3998: 3996: 3992: 3988: 3984: 3980: 3975: 3971: 3957: 3954: 3952: 3949: 3947: 3944: 3942: 3939: 3937: 3934: 3932: 3931:Keratomycosis 3929: 3927: 3926:Globe rupture 3924: 3922: 3919: 3917: 3914: 3912: 3909: 3907: 3904: 3902: 3898: 3894: 3891: 3890: 3888: 3884: 3878: 3875: 3873: 3870: 3868: 3865: 3862: 3859: 3857: 3856:Macular edema 3854: 3852: 3849: 3847: 3844: 3842: 3839: 3837: 3834: 3830: 3827: 3825: 3822: 3820: 3817: 3815: 3812: 3810: 3807: 3805: 3802: 3800: 3797: 3795: 3792: 3791: 3790: 3787: 3785: 3782: 3780: 3777: 3775: 3771: 3768: 3766: 3765:Retinoschisis 3763: 3759: 3756: 3755: 3754: 3751: 3747: 3744: 3742: 3739: 3738: 3737: 3734: 3733: 3731: 3729: 3725: 3719: 3716: 3714: 3711: 3707: 3704: 3702: 3699: 3698: 3697: 3694: 3693: 3691: 3689: 3685: 3675: 3672: 3670: 3667: 3663: 3660: 3659: 3658: 3655: 3653: 3652:Choroideremia 3650: 3649: 3647: 3645: 3641: 3635: 3632: 3630: 3629:Iridodialysis 3627: 3625: 3622: 3620: 3617: 3615: 3612: 3610: 3607: 3605: 3602: 3601: 3599: 3594: 3591: 3589: 3586: 3585: 3582: 3579: 3577: 3573: 3563: 3560: 3558: 3557:Arcus senilis 3555: 3553: 3552:Haab's striae 3550: 3548: 3545: 3543: 3540: 3538: 3535: 3531: 3528: 3527: 3526: 3523: 3519: 3516: 3514: 3511: 3509: 3506: 3504: 3501: 3499: 3496: 3495: 3494: 3491: 3487: 3484: 3482: 3479: 3478: 3477: 3474: 3472: 3469: 3467: 3466:Corneal ulcer 3464: 3460: 3457: 3455: 3452: 3450: 3447: 3445: 3444:acanthamoebic 3442: 3440: 3437: 3436: 3435: 3432: 3431: 3429: 3427: 3423: 3417: 3414: 3412: 3409: 3408: 3406: 3404: 3400: 3397: 3395: 3394:Fibrous tunic 3391: 3387: 3383: 3378: 3374: 3360: 3357: 3355: 3352: 3350: 3347: 3345: 3342: 3338: 3335: 3334: 3333: 3330: 3328: 3325: 3324: 3322: 3320: 3316: 3310: 3307: 3305: 3302: 3300: 3297: 3295: 3292: 3290: 3287: 3286: 3284: 3282: 3278: 3272: 3271:Xerophthalmia 3269: 3267: 3264: 3262: 3259: 3257: 3254: 3253: 3251: 3249: 3245: 3235: 3232: 3230: 3227: 3225: 3222: 3220: 3217: 3216: 3214: 3212: 3208: 3202: 3199: 3197: 3194: 3192: 3189: 3187: 3184: 3182: 3179: 3177: 3176:Lagophthalmos 3174: 3172: 3169: 3167: 3164: 3163: 3160: 3154: 3151: 3149: 3146: 3144: 3141: 3139: 3136: 3135: 3133: 3129: 3126: 3124: 3120: 3116: 3112: 3107: 3103: 3096: 3093: 3092: 3086: 3081: 3079: 3074: 3072: 3067: 3066: 3063: 3050: 3046: 3045: 3041: 3039: 3035: 3034: 3030: 3028: 3024: 3020: 3016: 3015: 3011: 3007: 3005: 3001: 2997: 2996: 2992: 2988: 2987: 2984: 2979: 2975: 2968: 2959: 2955: 2950: 2945: 2941: 2937: 2933: 2929: 2925: 2918: 2915: 2904:on 2021-06-24 2900: 2893: 2887: 2884: 2879: 2875: 2870: 2865: 2861: 2857: 2853: 2849: 2845: 2841: 2837: 2830: 2827: 2814: 2810: 2806: 2800: 2797: 2792: 2788: 2784: 2780: 2776: 2772: 2765: 2762: 2757: 2753: 2749: 2745: 2741: 2737: 2733: 2729: 2722: 2719: 2714: 2710: 2706: 2702: 2698: 2694: 2690: 2686: 2679: 2676: 2671: 2667: 2663: 2659: 2655: 2651: 2644: 2642: 2638: 2633: 2629: 2625: 2621: 2617: 2613: 2609: 2605: 2601: 2594: 2591: 2586: 2582: 2578: 2574: 2569: 2564: 2560: 2556: 2552: 2545: 2542: 2530: 2526: 2520: 2517: 2505: 2501: 2495: 2492: 2481: 2477: 2471: 2468: 2457: 2453: 2447: 2444: 2439: 2435: 2431: 2427: 2423: 2419: 2415: 2411: 2407: 2403: 2399: 2392: 2389: 2384: 2380: 2376: 2372: 2368: 2364: 2360: 2356: 2352: 2348: 2344: 2337: 2335: 2331: 2326: 2322: 2318: 2314: 2310: 2306: 2302: 2298: 2291: 2288: 2277: 2273: 2267: 2265: 2261: 2256: 2252: 2247: 2242: 2238: 2234: 2230: 2226: 2222: 2218: 2214: 2207: 2204: 2193:on 2011-12-21 2192: 2188: 2184: 2178: 2175: 2163: 2159: 2155: 2149: 2146: 2134: 2130: 2124: 2122: 2120: 2116: 2111: 2107: 2103: 2099: 2095: 2091: 2087: 2083: 2076: 2073: 2068: 2064: 2059: 2054: 2050: 2046: 2041: 2036: 2032: 2028: 2024: 2017: 2014: 2009: 2005: 2000: 1995: 1991: 1987: 1982: 1977: 1973: 1969: 1965: 1957: 1954: 1949: 1945: 1940: 1935: 1931: 1927: 1922: 1917: 1913: 1909: 1905: 1901: 1897: 1890: 1887: 1882: 1878: 1873: 1868: 1864: 1860: 1856: 1852: 1848: 1841: 1839: 1835: 1830: 1826: 1821: 1816: 1812: 1808: 1804: 1800: 1796: 1789: 1787: 1785: 1783: 1779: 1774: 1770: 1765: 1760: 1756: 1752: 1748: 1744: 1740: 1733: 1731: 1727: 1722: 1718: 1714: 1710: 1706: 1702: 1698: 1694: 1687: 1685: 1683: 1679: 1674: 1672:9780323355353 1668: 1664: 1663: 1655: 1652: 1640: 1636: 1630: 1628: 1624: 1612: 1608: 1602: 1599: 1587: 1583: 1577: 1574: 1564: 1560: 1556: 1552: 1545: 1542: 1537: 1533: 1528: 1523: 1519: 1515: 1511: 1507: 1503: 1496: 1493: 1488: 1484: 1479: 1474: 1470: 1466: 1462: 1458: 1454: 1446: 1443: 1438: 1434: 1430: 1426: 1421: 1416: 1413:(3): 258–66. 1412: 1408: 1404: 1397: 1395: 1391: 1386: 1382: 1377: 1372: 1368: 1364: 1360: 1356: 1352: 1345: 1343: 1341: 1339: 1335: 1330: 1326: 1324:9780750675758 1320: 1316: 1315: 1307: 1305: 1301: 1296: 1292: 1287: 1282: 1277: 1272: 1268: 1264: 1260: 1253: 1251: 1247: 1242: 1238: 1234: 1230: 1226: 1222: 1218: 1214: 1207: 1205: 1201: 1196: 1192: 1187: 1182: 1178: 1174: 1170: 1166: 1162: 1155: 1153: 1149: 1144: 1142:9780198816751 1138: 1134: 1127: 1125: 1123: 1121: 1119: 1117: 1113: 1100: 1096: 1092: 1086: 1084: 1082: 1080: 1078: 1076: 1074: 1072: 1070: 1068: 1066: 1064: 1062: 1060: 1058: 1056: 1052: 1047: 1043: 1038: 1033: 1030:(3): 237–43. 1029: 1025: 1021: 1014: 1011: 995: 988: 982: 979: 972: 970: 964: 962: 960: 956: 952: 948: 944: 938: 934: 920: 730-800 914: 660-730 908: 590-660 902: 520-590 896: 450-520 890: 380-450 884: 310-380 878: 240-310 872: 170-240 866: 100-170 854: No data 847: 843: 836: 834: 832: 827: 820: 818: 812: 810: 808: 799: 797: 788: 785: 784: 780: 777: 776: 772: 769: 768: 764: 761: 760: 755: 752: 751: 747: 744: 743: 738: 735: 728: 723: 720: 717: 714: 711: 708: 707: 706: 702: 695: 693: 691: 687: 683: 677: 671: 669: 667: 659: 657: 655: 650: 648: 644: 640: 635: 633: 629: 628: 623: 622: 617: 613: 609: 600: 593: 591: 589: 588:accommodation 585: 581: 576: 573: 569: 568: 562: 560: 556: 552: 548: 544: 536: 534: 532: 528: 523: 515:Environmental 514: 512: 509: 505: 501: 497: 493: 489: 488:photoreceptor 485: 481: 477: 473: 469: 465: 460: 455:, early stage 454: 449: 442: 437: 435: 432: 428: 427: 418: 415: 412: 409: 406: 403: 402: 401: 398: 396: 395:magnification 392: 388: 384: 383:anisometropia 379: 372: 371: 367: 364: 363: 359: 355: 351: 350: 346: 342: 338: 334: 333: 329: 325: 324: 323: 320: 312: 305: 303: 301: 297: 293: 289: 285: 280: 276: 274: 270: 266: 262: 258: 253: 251: 247: 242: 240: 236: 232: 231:double vision 228: 224: 220: 216: 212: 208: 204: 200: 196: 193: 189: 180: 176: 173: 169: 165: 162: 158: 155: 152: 150: 146: 143: 139: 135: 132: 128: 125: 121: 117: 113: 110: 106: 103: 99: 96: 94: 93:Complications 90: 87: 83: 79: 78:double vision 75: 74:Blurry vision 72: 70: 66: 63: 59: 58:Ophthalmology 56: 54: 50: 45: 41: 36: 32: 28: 23: 4409: / 4405: / 4384:Monochromacy 4316: / 4291: 4212:Heterophoria 4200: / 3899: / 3895: / 3799:hypertensive 3772: / 3593:Ciliary body 3508:Keratoglobus 3416:Episcleritis 3294:Enophthalmos 3289:Exophthalmos 3234:Trichomegaly 3229:Distichiasis 3131:Inflammation 3042: 3031: 3008: 2989: 2931: 2927: 2917: 2906:. Retrieved 2899:the original 2886: 2843: 2839: 2829: 2817:. Retrieved 2808: 2799: 2774: 2770: 2764: 2731: 2727: 2721: 2688: 2684: 2678: 2653: 2649: 2610:(1): 41–46. 2607: 2603: 2593: 2558: 2554: 2544: 2533:. Retrieved 2531:. 2023-07-26 2528: 2519: 2508:. Retrieved 2506:. 2023-05-03 2503: 2494: 2483:. Retrieved 2479: 2470: 2459:. Retrieved 2455: 2446: 2408:(1): 19–24. 2405: 2401: 2391: 2350: 2346: 2300: 2290: 2279:. Retrieved 2275: 2220: 2216: 2206: 2195:. Retrieved 2191:the original 2186: 2177: 2166:. Retrieved 2157: 2148: 2137:. Retrieved 2135:. 2023-04-29 2132: 2085: 2081: 2075: 2030: 2026: 2016: 1971: 1967: 1956: 1903: 1899: 1889: 1857:(3): 314–8. 1854: 1850: 1802: 1798: 1746: 1742: 1696: 1692: 1661: 1654: 1643:. Retrieved 1641:. 2023-04-18 1638: 1614:. Retrieved 1610: 1601: 1589:. Retrieved 1585: 1576: 1566:, retrieved 1554: 1544: 1509: 1505: 1495: 1460: 1456: 1445: 1410: 1406: 1358: 1354: 1313: 1266: 1262: 1216: 1212: 1171:(2): 202–8. 1168: 1164: 1132: 1103:. Retrieved 1099:the original 1094: 1027: 1023: 1013: 1001:. Retrieved 994:the original 981: 968: 939: 935: 931: 837:Epidemiology 828: 824: 816: 803: 795: 748:Description 736: 732: 703: 699: 678: 675: 663: 651: 636: 625: 619: 605: 579: 577: 571: 565: 563: 540: 518: 461: 458: 438:Risk factors 430: 424: 422: 416: 410: 404: 399: 380: 377: 368: 360: 343: 326: 321: 317: 281: 277: 254: 243: 187: 186: 4534:Cycloplegia 4477:Photophobia 4472:Hemeralopia 4429:Hemianopsia 4407:Vision loss 4318:Aniseikonia 4309:Astigmatism 4229:Cyclotropia 4207:Hypertropia 4019:Papilledema 3991:Optic nerve 3824:Sickle cell 3804:Purtscher's 3789:Retinopathy 3657:Choroiditis 3498:Keratoconus 3319:Conjunctiva 3196:Xanthelasma 3148:Blepharitis 2846:(1): 3–22. 1616:10 February 1591:10 February 1219:(1): 3–16. 1003:17 February 949:along with 947:vision loss 786:Infections 632:Cycloplegic 621:retinoscopy 616:retinoscope 572:emmetropic. 391:aniseikonia 370:Astigmatism 290:along with 288:vision loss 219:astigmatism 120:astigmatism 30:Other names 4634:Refraction 4618:Categories 4583:Infections 4504:Anisocoria 4467:Asthenopia 4460:subjective 4444:homonymous 4439:bitemporal 4391:Nyctalopia 4379:Dichromacy 4323:Presbyopia 4284:Refraction 4105:Strabismus 3995:Optic disc 3354:Pinguecula 3219:Trichiasis 3044:DiseasesDB 2908:2023-03-21 2691:(1): 3–8. 2535:2023-11-06 2510:2023-11-06 2485:2021-06-29 2461:2022-08-03 2281:2023-10-30 2197:2011-12-13 2168:2006-09-13 2139:2023-10-31 1974:(1): 875. 1743:Clin Genet 1693:The Lancet 1645:2023-10-31 1568:2023-10-31 1555:StatPearls 973:References 821:Prevention 672:Management 610:during an 567:emmetropia 547:refraction 490:function ( 431:emmetropic 426:emmetropia 362:Presbyopia 257:eyeglasses 239:eye strain 223:presbyopia 164:Eyeglasses 124:presbyopia 86:eye strain 4555:Nystagmus 4529:Mydriasis 4403:Blindness 4349:Amblyopia 4337:Blindness 4297:Hyperopia 4222:Exophoria 4217:Esophoria 4202:Exotropia 4198:Esotropia 3736:Retinitis 3434:Keratitis 3411:Scleritis 3344:Pterygium 3224:Madarosis 3171:Ectropion 3166:Entropion 3143:Chalazion 2860:2452-2325 2624:1080-7683 2577:1395-3907 2422:0007-1161 2367:0959-8138 2353:: c1711. 2325:263605231 2317:2767-6617 2276:aapos.org 2237:1866-0452 2110:237573319 2049:0950-222X 1990:1660-4601 1930:1932-6203 1721:208793136 1586:aapos.org 951:cataracts 666:ambylopia 660:Screening 594:Diagnosis 570:or being 411:Cylinder: 354:hyperopia 345:Hyperopia 292:cataracts 235:headaches 178:Frequency 160:Treatment 102:amblyopia 98:Blindness 82:headaches 62:optometry 53:Specialty 4594:Trachoma 4359:Diplopia 4054:Ischemic 3979:Pathways 3893:Glaucoma 3794:diabetic 3696:Cataract 3634:Synechia 3486:Meesmann 3454:Exposure 3439:herpetic 3337:allergic 3327:Chemosis 3261:Epiphora 2958:28197998 2878:29564404 2813:Archived 2811:. 2009. 2791:28586503 2756:21512136 2748:29095758 2713:24069302 2705:26513719 2670:28092397 2632:16503774 2585:11401629 2430:18156372 2375:20385718 2255:27839543 2162:Archived 2102:34538220 2067:24406412 2008:36613196 1948:26485393 1900:PLOS ONE 1881:23396134 1829:21155761 1773:21155761 1713:22559900 1563:36508524 1536:31930781 1487:36809645 1437:42359341 1429:25611765 1385:26063472 1329:Archived 1295:25539893 1241:32397628 1233:22150586 1195:24406412 1046:11285669 580:increase 553:and the 443:Genetics 192:focusing 69:Symptoms 4434:binasal 4421:Anopsia 4364:Scotoma 4158:palsies 3921:Red eye 3906:Floater 3713:Aphakia 3644:Choroid 3614:Hyphema 3604:Uveitis 3211:Eyelash 3038:D012030 2949:5408355 2869:5859285 2819:Nov 11, 2438:2157969 2383:8240093 2246:5143802 2058:3930282 1999:9820324 1939:4618477 1908:Bibcode 1872:3740568 1820:3058260 1764:3058260 1527:6984636 1478:9933422 1376:4561509 1286:4391667 1269:: 163. 1186:3930282 1105:29 July 1037:2566380 800:Surgery 696:Glasses 682:glasses 522:Reading 405:Sphere: 357:cornea. 340:cornea. 265:surgery 205:and/or 134:Eyeball 4624:Vision 4524:Miosis 4302:Myopia 4081:Kjer's 3829:photic 3728:Retina 3481:Fuchs' 3449:fungal 3426:Cornea 3403:Sclera 3186:Ptosis 3123:Eyelid 3111:Adnexa 2956:  2946:  2876:  2866:  2858:  2789:  2754:  2746:  2711:  2703:  2668:  2630:  2622:  2583:  2575:  2436:  2428:  2420:  2381:  2373:  2365:  2323:  2315:  2253:  2243:  2235:  2108:  2100:  2065:  2055:  2047:  2006:  1996:  1988:  1946:  1936:  1928:  1879:  1869:  1827:  1817:  1771:  1761:  1719:  1711:  1669:  1561:  1534:  1524:  1485:  1475:  1435:  1427:  1383:  1373:  1355:Lancet 1321:  1293:  1283:  1239:  1231:  1193:  1183:  1139:  1044:  1034:  957:, and 924:  918:  912:  906:  900:  894:  888:  882:  876:  870:  864:  858:  852:  584:retina 551:cornea 543:retina 429:or be 389:, and 374:image. 337:myopia 328:Myopia 298:, and 237:, and 227:blurry 221:, and 207:cornea 199:retina 138:cornea 130:Causes 4548:Other 4496:Pupil 3886:Other 3530:sicca 3382:Globe 3281:Orbit 3049:29645 3027:367.9 3023:367.2 3019:367.0 3004:H52.4 3000:H52.0 2902:(PDF) 2895:(PDF) 2752:S2CID 2709:S2CID 2434:S2CID 2379:S2CID 2321:S2CID 2106:S2CID 1717:S2CID 1433:S2CID 1237:S2CID 997:(PDF) 990:(PDF) 846:DALYs 417:Axis: 284:blind 263:, or 195:light 108:Types 3688:Lens 3588:Iris 3138:Stye 3033:MeSH 3014:9-CM 2954:PMID 2932:2017 2874:PMID 2856:ISSN 2821:2009 2787:PMID 2744:PMID 2701:PMID 2666:PMID 2628:PMID 2620:ISSN 2581:PMID 2573:ISSN 2426:PMID 2418:ISSN 2371:PMID 2363:ISSN 2313:ISSN 2251:PMID 2233:ISSN 2098:PMID 2063:PMID 2045:ISSN 2004:PMID 1986:ISSN 1944:PMID 1926:ISSN 1877:PMID 1825:PMID 1769:PMID 1709:PMID 1667:ISBN 1618:2020 1593:2020 1559:PMID 1532:PMID 1510:2021 1483:PMID 1461:2023 1425:PMID 1381:PMID 1319:ISBN 1291:PMID 1229:PMID 1191:PMID 1137:ISBN 1107:2016 1042:PMID 1005:2020 965:Cost 555:lens 504:CSNB 484:loci 464:OMIM 142:lens 3010:ICD 2991:ICD 2944:PMC 2936:doi 2864:PMC 2848:doi 2779:doi 2736:doi 2693:doi 2658:doi 2612:doi 2563:doi 2410:doi 2355:doi 2351:340 2347:BMJ 2305:doi 2241:PMC 2225:doi 2221:113 2090:doi 2086:105 2053:PMC 2035:doi 2027:Eye 1994:PMC 1976:doi 1934:PMC 1916:doi 1867:PMC 1859:doi 1815:PMC 1807:doi 1759:PMC 1751:doi 1701:doi 1697:379 1522:PMC 1514:doi 1473:PMC 1465:doi 1415:doi 1371:PMC 1363:doi 1359:386 1281:PMC 1271:doi 1221:doi 1181:PMC 1173:doi 1165:Eye 1095:NEI 1032:PMC 637:An 496:RP2 492:NYX 347:or 330:or 203:eye 4620:: 3047:: 3036:: 3017:: 2998:: 2995:10 2952:. 2942:. 2930:. 2926:. 2872:. 2862:. 2854:. 2844:30 2842:. 2838:. 2807:. 2785:. 2775:33 2773:. 2750:. 2742:. 2732:94 2730:. 2707:. 2699:. 2689:42 2687:. 2664:. 2654:54 2652:. 2640:^ 2626:. 2618:. 2608:22 2606:. 2602:. 2579:. 2571:. 2559:79 2557:. 2553:. 2527:. 2502:. 2478:. 2454:. 2432:. 2424:. 2416:. 2406:92 2404:. 2400:. 2377:. 2369:. 2361:. 2349:. 2345:. 2333:^ 2319:. 2311:. 2303:. 2299:. 2274:. 2263:^ 2249:. 2239:. 2231:. 2219:. 2215:. 2185:. 2160:. 2156:. 2131:. 2118:^ 2104:. 2096:. 2084:. 2061:. 2051:. 2043:. 2031:28 2029:. 2025:. 2002:. 1992:. 1984:. 1972:20 1970:. 1966:. 1942:. 1932:. 1924:. 1914:. 1904:10 1902:. 1898:. 1875:. 1865:. 1855:45 1853:. 1849:. 1837:^ 1823:. 1813:. 1803:79 1801:. 1797:. 1781:^ 1767:. 1757:. 1747:79 1745:. 1741:. 1729:^ 1715:. 1707:. 1695:. 1681:^ 1637:. 1626:^ 1609:. 1584:. 1553:, 1530:. 1520:. 1508:. 1504:. 1481:. 1471:. 1459:. 1455:. 1431:. 1423:. 1411:92 1409:. 1405:. 1393:^ 1379:. 1369:. 1357:. 1353:. 1337:^ 1327:. 1303:^ 1289:. 1279:. 1267:14 1265:. 1261:. 1249:^ 1235:. 1227:. 1217:32 1215:. 1203:^ 1189:. 1179:. 1169:28 1167:. 1163:. 1151:^ 1115:^ 1093:. 1054:^ 1040:. 1028:79 1026:. 1022:. 961:. 953:, 688:, 684:, 630:. 561:. 494:, 302:. 294:, 259:, 252:. 241:. 233:, 217:, 213:, 170:, 166:, 122:, 118:, 114:, 100:, 84:, 80:, 76:, 60:, 3084:e 3077:t 3070:v 3025:- 3021:- 3012:- 3002:- 2993:- 2983:D 2960:. 2938:: 2911:. 2880:. 2850:: 2823:. 2793:. 2781:: 2758:. 2738:: 2715:. 2695:: 2672:. 2660:: 2634:. 2614:: 2587:. 2565:: 2538:. 2513:. 2488:. 2464:. 2440:. 2412:: 2385:. 2357:: 2327:. 2307:: 2284:. 2257:. 2227:: 2200:. 2171:. 2142:. 2112:. 2092:: 2069:. 2037:: 2010:. 1978:: 1950:. 1918:: 1910:: 1883:. 1861:: 1831:. 1809:: 1775:. 1753:: 1723:. 1703:: 1675:. 1648:. 1620:. 1595:. 1538:. 1516:: 1489:. 1467:: 1439:. 1417:: 1387:. 1365:: 1297:. 1273:: 1243:. 1223:: 1197:. 1175:: 1145:. 1109:. 1048:. 1007:. 502:(

Index


Specialty
Ophthalmology
optometry
Symptoms
Blurry vision
double vision
headaches
eye strain
Complications
Blindness
amblyopia
Near-sightedness
far-sightedness
astigmatism
presbyopia
Eyeball
cornea
lens
Diagnostic method
Eye examination
Eyeglasses
contact lenses
refractive surgery
focusing
light
retina
eye
cornea
near-sightedness

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.

↑