ArticleBiomedical optics express2016
Accommodating volume-constant age-dependent optical (AVOCADO) model of the crystalline GRIN lens.
Article in Biomedical optics express, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Roadmap on advances in visual and physiological optics.Journal of optics (2010) · 2025Review
- Analytical ray transfer matrix for the crystalline lens.Biomedical optics express · 2022Article
- Paraxial equivalent of the gradient-index lens of the human eye.Biomedical optics express · 2022Article
- Single function crystalline lens capable of mimicking ciliary body accommodation.Biomedical optics express · 2020Article
- Development of anBiomedical optics express · 2019Article
- Lens internal curvature effects on age-related eye model and lens paradox.Biomedical optics express · 2017Article
- Crystalline lens paradoxes revisited: significance of age-related restructuring of the GRIN.Biomedical optics express · 2017Article
- Accommodation and age-dependent eye model based on in vivo measurements.Journal of optometryArticle
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Authors and funding
2 authors.
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Abstract
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 refractive power and axial optical path length. The aspect ratio of the lens core can be held constant under accommodation, as well as the lens volume by varying the asphericity of the lens external surfaces. The spherical aberration calculated by exact raytracing is shown to be in line with experimental data. The proposed model is compared to previous GRIN models from the literature, and it is concluded that the features of the new model will be useful for GRIN reconstruction in future experimental studies; in particular, studies of the accommodation-dependent properties of the ageing human eye. A proposed logarithmic model of the lens core enables decoupling of three fundamental optical characteristics of the lens, namely axial optical path length, optical power and third-order spherical aberration, without changing the external shape of the lens. Conversely, the near-surface GRIN structure conforms to the external shape of the lens, which is necessary for accommodation modelling.
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