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
收藏
页码：4827 / 4837
页数：11
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