Contributions of shape and stiffness to accommodative loss in the ageing human lens: a finite element model assessment

被引：8

作者：

Wang, Kehao ^{[1
]}

Hoshino, Masato ^{[2
]}

Uesugi, Kentaro ^{[2
]}

Yagi, Naoto ^{[2
]}

Pierscionek, Barbara K. ^{[1
]}

机构：

[1] Nottingham Trent Univ, Sch Sci & Technol, Clifton Campus,Clifton Lane, Nottingham NG11 8NS, IN, England

[2] Japan Synchrotron Radiat Res Inst SPring 8, 1-1-1 Kouto, Sayo, Hyogo 6795198, Japan

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2019年 / 36卷 / 04期

关键词：

HUMAN CRYSTALLINE LENS; AGE-RELATED-CHANGES; MECHANICAL-PROPERTIES; INTRAOCULAR LENSES; ELASTIC-CONSTANTS; CAPSULAR BAG; HUMAN-EYE; CURVATURE; GRADIENT; MODULUS;

D O I：

10.1364/JOSAA.36.00B116

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ageing changes to the various components of the accommodative system of the eye lens contribute to the loss of focusing power. The relative contributions of each ageing component, however, are not well defined. This study investigates the contribution of geometric parameters and material properties on accommodation, simulated using models based on human lenses aged 16, 35, and 48 years. Each model was tested using two different sets of material properties and a range of zonular fiber angles and was compared to results from in vivo measurements. The geometries and material parameters of older and younger lens models were interchanged to investigate the role of shape and material on accommodative capacity. Results indicate that geometry has the greater role in accommodation. (C) 2019 Optical Society of America

引用

页码：B116 / B122

页数：7

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