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KMID : 1159320140160040485
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Korean Journal of Vision Science
2014 Volume.16 No. 4 p.485 ~ p.492
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The Clinical Study of Difference of Refractive Errors between Both Eyes by Age
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Jung Mi-A
Lee Hea-Jung
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Abstract
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Purposes: To analyze anisometropia according to the age and to provide the preliminary data of a rapidly growing elderly population for their eyecare management.
Methods: We measured refractive errors using KR-8800(Topcon inc., Japan) and axial length using IOL Master(Carl Zeiss inc., Germany) in 100 subjects(200 eyes) aged from 20 to 79 years(mean age: ). Subjects were divided into 3 groups by age considering onset and surgery of nuclear cataract, assessed the prevalence and difference of refractive errors, and analyzed the correlation between anisometropia and axial length.
Results: The prevalence of spherical equivalent errors showed aged 20~39, aged 40~59 and aged 60~79 years group and the difference of spherical equivalent errors between both eyes aged 20~39, aged 40~59 and aged 60~79 years group. The difference of axial length between both eyes showed aged 20~39, aged 40~59 and aged 60~79 years group. The correlation between anisometropia and axial length showed high with age increased(r=0.48 for 20~39, r=0.61 for 40~59, and r=0.72 for 60~79 age group).
Conclusion: The prevalence and severity of anisometropia increased with age. It is recognized that this can be degraded visual function factor in the elderly population and the correct prescription for the refractive error and management is considered to be needed.
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KEYWORD
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anisometropia, axial length, nuclear cataract, refractive error, visual function
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