Lens internal curvature effects on age-related eye model and lens paradox

被引：9

作者：

Giovanzana, Stefano ^{[1
]}

Evans, Tanya ^{[2
]}

Pierscionek, Barbara ^{[3
]}

机构：

[1] Studio Optometr Giovanzana, Milan, Italy

[2] Univ Johannesburg, Dept Optometry, Johannesburg, South Africa

[3] Nottingham Trent Univ, Sch Sci & Technol, Coll Sci & Technol, Nottingham, England

来源：

BIOMEDICAL OPTICS EXPRESS | 2017年 / 8卷 / 11期

关键词：

GRADIENT-INDEX LENS; AGING HUMAN LENS; REFRACTIVE-INDEX; THEORETICAL EYE; SCHEMATIC EYE; SHAPE; ACCOMMODATION; HYPERGLYCEMIA; HYPEROPIA; ASPHERICS;

D O I：

10.1364/BOE.8.004827

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The gradient index (GRIN) model is the most accurate way to represent the eye lens which, because of its growth mode, is a lamellar, shell-like structure. The GRIN is thought to provide optical properties that counteract age-related changes in curvature that would otherwise create an increasingly myopic eye: the so-called lens paradox. This article investigates how fine-tuning the refractive index and the internal curvatures of the lenticular indicial contours may prevent the ageing eye from becoming myopic. A system matrix approach is applied for analysis of a shell model with 200 shells to obtain the paraxial characteristics of the eye model. (C) 2017 Optical Society of America

引用

页码：4827 / 4837

页数：11

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