The chromatic eye: a new reduced-eye model of ocular chromatic aberration in humans

Thibos, Larry N.; Ye, Ming; Zhang, Xiaoxiao; Bradley, Arthur

doi:10.1364/ao.31.003594

Cited by 275 publications

(228 citation statements)

References 24 publications

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“…However, the LCA results can be compared with those obtained by the longitudinal chromatic dispersion equations. 37 Atchison and Smith 38 showed that the theoretically derived Cauchy's equation yields results that are in an excellent agreement with the data in the visible spectrum. It can be employed to extrapolate reliable indicated that the psychophysically measured LCA was signi¯cantly higher than the value obtained using HS technique which was an objective method.…”

Section: Discussionmentioning

confidence: 72%

Simultaneous quantification of longitudinal and transverse ocular chromatic aberrations with Hartmann–Shack wavefront sensor

Deng

Zhao

Dai

et al. 2018

J. Innov. Opt. Health Sci.

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A simple method to objectively and simultaneously measure eye's longitudinal and transverse chromatic aberrations was proposed. A dual-wavelength wavefront measurement system using two Hartmann-Shack wavefront sensors was developed. The wavefronts of the red (639.1 nm) and near-infrared (786.0 nm) lights were measured simultaneously for di®erent positions in the model eye. The chromatic wavefronts were converted into Zernike polynomials. The Zernike tilt coe±cient (¯rst term) was used to calculate the transverse chromatic aberration along the x-direction, while the Zernike defocus coe±cient (fourth term) was used to calculate the longitudinal chromatic aberration. The measurement and simulation data were consistent.

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Section: Discussionmentioning

confidence: 72%

Simultaneous quantification of longitudinal and transverse ocular chromatic aberrations with Hartmann–Shack wavefront sensor

Deng

Zhao

Dai

et al. 2018

J. Innov. Opt. Health Sci.

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“…85 LCA shows low intersubject variability and good agreement between model predictions and experimental data. 7,8 On the contrary, TCA varies among subjects 86,87 and is hardly predicted by rotationally symmetric eye models.…”

Section: Chromatic Aberrationmentioning

confidence: 89%

“…In fact, it has been shown that the LCA (longitudinal chromatic aberration) of the eye is close to that of a salty water single-surface lens. 8 In lens design, CA is corrected by a combination of glasses with low and high dispersions (the classic flint & crown), but this strategy is difficult with biological tissues having a high water content. Thus, nature doesn't seem to even try this hardly achievable goal.…”

Section: Figure 11mentioning

confidence: 99%

“…15 ) and LCA. 7,8 However, they were strongly limited to analyze some of the key design features or irregular HOA. As an example, we can compare two kinds of models: optimized versus anatomical (no optimized parameters).…”

Section: Model Predictionsmentioning

confidence: 99%

“…-Reduced (single refractive surface) 2,3 versus anatomical (cornea and lens), 4,5 -Monochromatic 6 versus polychromatic 7,8 (considering refractive index dispersion),…”

Section: Introductionmentioning

confidence: 99%

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The Optical Design of the Human Eye: a Critical Review

Navarro

2009

Journal of Optometry

100

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Cornea, lens and eye models are analyzed and compared to experimental findings to assess properties and eventually unveil optical design principles involved in the structure and function of the optical system of the eye. Models and data often show good match but also some paradoxes. The optical design seems to correspond to a wide angle lens. Compared to conventional optical systems, the eye presents a poor optical quality on axis, but a relatively good quality off-axis, thus yielding higher homogeneity for a wide visual field. This seems the result of an intriguing combination of the symmetry design principle with a total lack of rotational symmetry, decentrations and misalignments of the optical surfaces (J Optom 2009;2:3-18 ©2009 Spanish Council of Optometry) KEY WORDS: human eye's optical design; eye models; design principles; ocular aberrations; optical quality of the eye. RESUMENEn este trabajo, los modelos de córnea, de cristalino y de ojo se analizan y se comparan con los datos experimentales para evaluar las propiedades y, eventualmente, para desvelar los principios del diseño óptico que afectan a la estructura y al funcionamiento del sistema óptico del ojo humano. A menudo encontramos una coincidencia razonable entre los modelos y los datos experimentales, pero también se ponen de manifiesto algunas paradojas. El diseño óptico parece corresponderse con el de un gran angular. En comparación con los sistemas ópticos convencionales, el ojo tiene una mala calidad óptica en eje pero, por el contrario, presenta una calidad relativamente buena fuera de eje, proporcionando así una gran homogeneidad a una amplia extensión del campo visual. Este hecho parece ser el resultado de una curiosa combinación del principio de diseño simétrico con una total ausencia de simetría de rotación, con descentramientos y con una deficiente alineación de las superficies ópticas. (J Optom 2009;2:3-18 ©2009 Consejo General de Colegios de Ópticos-Optometristas de España) PALABRAS CLAVE: diseño óptico del ojo humano; modelos de ojo; principios de diseño; aberraciones oculares; calidad óptica del ojo.

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