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Improved wide-field emmetropic human eye model based on ocular wavefront measurements and geometry-independent gradient index lens
University of South-Eastern Norway, Norway.ORCID iD: 0000-0003-3290-2642
University of South-Eastern Norway, Norway.ORCID iD: 0000-0003-3259-7617
Linnaeus University, Faculty of Health and Life Sciences, Department of Medicine and Optometry. (REVO)ORCID iD: 0000-0002-3745-0035
2018 (English)In: Optical Society of America. Journal A: Optics, Image Science, and Vision, ISSN 1084-7529, E-ISSN 1520-8532, Vol. 35, no 11, p. 1954-1967Article in journal (Refereed) Published
Abstract [en]

There is a need to better understand the peripheral optics of the human eye and their correction. Current eye models have some limitations to accurately predict the wavefront errors for the emmetropic eye over a wide field. The aim here was to develop an anatomically correct optical model of the human eye that closely reproduces the wavefront of an average Caucasian-only emmetropic eye across a wide visual field. Using an optical design program, a schematic eye was constructed based on ocular wavefront measurements of the right eyes of thirty healthy young emmetropic individuals over a wide visual field (from 40° nasal to 40° temporal and up to 20° inferior field). Anatomical parameters, asymmetries, and dispersion properties of the eye’s different optical components were taken into account. A geometry-independent gradient index model was employed to better represent the crystalline lens. The RMS wavefront error, wavefront shapes, dominant Zernike coefficients, nasal-temporal asymmetries, and dispersion properties of the developed schematic eye closely matched the corresponding measured values across the visual field. The developed model can help in the design of wide-field ophthalmic instruments and is useful in the study and simulations of the peripheral optics of the human eye.

Place, publisher, year, edition, pages
Optical Society of America, 2018. Vol. 35, no 11, p. 1954-1967
Keywords [en]
Crystalline lens, Eye models, Gradient index lenses, Monochromatic aberrations, Refractive index, Visual optics
National Category
Ophthalmology
Research subject
Natural Science, Optometry
Identifiers
URN: urn:nbn:se:lnu:diva-78543DOI: 10.1364/JOSAA.35.001954ISI: 000448935600022OAI: oai:DiVA.org:lnu-78543DiVA, id: diva2:1259500
Available from: 2018-10-30 Created: 2018-10-30 Last updated: 2019-05-24Bibliographically approved

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The full text will be freely available from 2019-11-30 09:42
Available from 2019-11-30 09:42

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Baskaran, Karthikeyan

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Akram, Muhammad NadeemBaraas, Rigmor C.Baskaran, Karthikeyan
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Optical Society of America. Journal A: Optics, Image Science, and Vision
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