Biometric measurement of anterior segment: a review

B Liu, C Kang, F Fang - Sensors, 2020 - mdpi.com
Biometric measurement of the anterior segment is of great importance for the
ophthalmology, human eye modeling, contact lens fitting, intraocular lens design, etc. This …

Accommodating volume-constant age-dependent optical (AVOCADO) model of the crystalline GRIN lens

CJ Sheil, AV Goncharov - Biomedical optics express, 2016 - opg.optica.org
The purpose of this manuscript is to introduce a new age-dependent model of the human
lens with two GRIN power distributions (axial and radial) that allow decoupling of its …

Single function crystalline lens capable of mimicking ciliary body accommodation

A Jaimes-Nájera, JE Gómez-Correa… - Biomedical Optics …, 2020 - opg.optica.org
The lens is a complex optical component of the human eye because of its physiological
structure: the surface is aspherical and the structural entities create a gradient refractive …

Geometry-invariant GRIN lens: finite ray tracing

M Bahrami, AV Goncharov - Optics express, 2014 - opg.optica.org
The refractive index distribution of the geometry-invariant gradient refractive index lens
(GIGL) model is derived as a function of Cartesian coordinates. The adjustable external …

Crystalline lens paradoxes revisited: significance of age-related restructuring of the GRIN

CJ Sheil, AV Goncharov - Biomedical Optics Express, 2017 - opg.optica.org
The accommodating volume-constant age-dependent optical (AVOCADO) model of the
crystalline lens is used to explore the age-related changes in ocular power and spherical …

Alteration in refractive index profile during accommodation based on mechanical modelling

M Bahrami, A Heidari, BK Pierscionek - Biomedical Optics Express, 2015 - opg.optica.org
The lens of the eye has a gradient refractive index (GRIN). Ocular accommodation, which
alters the shape of the lens in response to visual demand, causes a redistribution of the …

[PDF][PDF] 三种年龄相关性人眼模型的成像质量比较研究

阳婷, 徐晓立, 张学典, 李峰, 江旻珊 - 光学仪器, 2020 - researching.cn
利用Zemax 软件建立了Navarro, Atchison 和Zapata-Díaz 三种年龄相关性人眼模型的光学系统
, 评估并比较了各模型眼在不同年龄及不同调节状态下的成像质量. 模拟了入瞳直径分别为3 mm …

Modified Poisson-Gauss Single-Function to Describe the GRIN of the Human Lens

A Jaimes-Nájera - Journal of Physics: Conference Series, 2023 - iopscience.iop.org
The human lens plays a crucial role in the vision process, since it is responsible for the
accommodation mechanism and for the reduction of optical aberrations. Its modeling is …

[HTML][HTML] Refractive index redistribution with accommodation based on finite volume-constant age-dependent mechanical modeling

M Jiang, X Xu, T Yang, X Zhang, F Li - Vision Research, 2019 - Elsevier
The human lens is considered to have a gradient refractive index (GRIN) distribution. The
recently developed accommodating volume-constant age-dependent optical (AVOCADO) …

[PDF][PDF] Wewnątrzgałkowe wieloogniskowe soczewki refrakcyjno-dyfrakcyjne o dużej głębokości reliefu dyfrakcyjnego

J Pniewski - repozytorium.uw.edu.pl
Metody W analizie będącej przedmiotem rozprawy wykorzystano przybliżenie Fresnela
skalarnej teorii dyfrakcji światła i wybrane narzędzia optyki fourierowskiej. Ten aparat …