ArticleBiomedical optics express2014
An analytical method for predicting the geometrical and optical properties of the human lens under accommodation.
Article in Biomedical optics express, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 10 citations in OpenAlex.
- Biometric Measurement of Anterior Segment: A Review.Sensors (Basel, Switzerland) · 2020Review
- Single function crystalline lens capable of mimicking ciliary body accommodation.Biomedical optics express · 2020Article
- Crystalline lens paradoxes revisited: significance of age-related restructuring of the GRIN.Biomedical optics express · 2017Article
- Accommodating volume-constant age-dependent optical (AVOCADO) model of the crystalline GRIN lens.Biomedical optics express · 2016Article
- Alteration in refractive index profile during accommodation based on mechanical modelling.Biomedical optics express · 2016Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We present an analytical method to describe the accommodative changes in the human crystalline lens. The method is based on the geometry-invariant lens model, in which the gradient-index (GRIN) iso-indicial contours are coupled to the external shape. This feature ensures that any given number of iso-indicial contours does not change with accommodation, which preserves the optical integrity of the GRIN structure. The coupling also enables us to define the GRIN structure if the radii and asphericities of the external lens surfaces are known. As an example, the accommodative changes in lenticular radii and central thickness were taken from the literature, while the asphericities of the external surfaces were derived analytically by adhering to the basic physical conditions of constant lens volume and its axial position. The resulting changes in lens geometry are consistent with experimental data, and the optical properties are in line with expected values for optical power and spherical aberration. The aim of the paper is to provide an anatomically and optically accurate lens model that is valid for 3 mm pupils and can be used as a new tool for better understanding of accommodation.
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