کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9348574 1263598 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of age on peripheral refraction
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی سیستم های حسی
پیش نمایش صفحه اول مقاله
Influence of age on peripheral refraction
چکیده انگلیسی
To investigate how age affects peripheral refraction we measured objective peripheral refraction for 55 young subjects (24 ± 4 years) and 41 older subjects (59 ± 3 years) out to 35° eccentricity in temporal and nasal visual fields. Subjects were compared in 1 D subgroups based on central spherical equivalent refractions (low hypermetropes +0.54 D to +1.51 D, emmetropes +0.50 D to −0.49 D, low myopes −0.50 D to −1.49 D, moderate myopes −1.50 D to −2.58 D). Overall, young and older subjects with similar refractive corrections had similar peripheral refraction components. Both age groups showed relative hypermetropic shifts in the peripheral fields as myopia increased and also decreases in peripheral astigmatism J180 as myopia increased. J45 varied little across the visual field with linear relationships occurring between J45 and visual field angle for all but one subgroup (older emmetropes). Peripheral refraction in emmetropes to moderate myopes is relatively unaffected by age for healthy eyes of similar refractive errors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vision Research - Volume 45, Issue 6, March 2005, Pages 715-720
نویسندگان
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