Accommodation-dependent model of the human eye with aspherics

Navarro, Rafael; Santamaría, Javier; Bescós, J.

doi:10.1364/josaa.2.001273

Cited by 389 publications

(310 citation statements)

References 23 publications

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“…For an eye with astigmatism of 1 DC (dioptres cylinder), Figure 5 shows simulations of images obtained at different planes using the OSLO® commercial software. Simulations were carried out with artificial eyes using a paraxial model (Le Grand eye model) and a finite model with aspherical surfaces (Navarro eye model) (Atchison & Smith, 2000;Navarro et al, 1985). A 4-mm pupil diameter and an angular field of 25º were considered.…”

Section: Simulations Of the Retinal Imagementioning

confidence: 99%

“…Pujol et al studied the influence of the amount of astigmatism and changes in axis of astigmatism on the eye's optical performance by means of numerical simulation using an emmetropic eye model (Navarro et al, 1985), an artificial eye, and three real subjects (JG, JP, VB) for a 4-mm artificial pupil. Different amounts of astigmatism were obtained by varying the cylindrical power of a lens situated in front of the eye, from 0.25 DC overcorrection to 1 DC undercorrection at intervals of 0.25 DC.…”

Section: Clinical Assessment Of Retinal Image Quality In Eyes With Asmentioning

confidence: 99%

See 1 more Smart Citation

Optics of Astigmatism and Retinal Image Quality

Vilaseca¹,

Díaz-Doutón²,

Luque³

et al. 2012

Astigmatism - Optics, Physiology and Management

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Section: Simulations Of the Retinal Imagementioning

confidence: 99%

Section: Clinical Assessment Of Retinal Image Quality In Eyes With Asmentioning

confidence: 99%

Optics of Astigmatism and Retinal Image Quality

Vilaseca¹,

Díaz-Doutón²,

Luque³

et al. 2012

Astigmatism - Optics, Physiology and Management

View full text Add to dashboard Cite

“…-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%

The Optical Design of the Human Eye: a Critical Review

Navarro

2009

Journal of Optometry

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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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“…However, spherical correction for wider eye pupils ranges from several dioptres undercorrection to several dioptres overcorrection [3].…”

Section: Introductionmentioning

confidence: 99%

Lens Design of the Eyepiece Combined with the Accommodation-dependent Navarro Eye at an On-axis Point

Choi¹,

Song²,

Kim³

2010

Journal of the Optical Society of Korea

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We introduce a new method for lens design that combines an eyepiece with the finite model eye, to make a corrected version of the accommodation-dependent Navarro eye. The optical system that we designed , which includes a human eye, takes into account the aberration of the eye and increases the performance of the image in the retina. In the design results, for the optimized eyepiece combined with the corrected Navarro eye, visual acuity is 1.40. Compared with the existing method of eyepiece design using inverse ray tracing with the corrected Navarro eye, MTF value was recorded as 0.079 to 0.283 at 160 lp/mm and visual performance was improved.

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Accommodation-dependent model of the human eye with aspherics

Cited by 389 publications

References 23 publications

Optics of Astigmatism and Retinal Image Quality

Optics of Astigmatism and Retinal Image Quality

The Optical Design of the Human Eye: a Critical Review

Lens Design of the Eyepiece Combined with the Accommodation-dependent Navarro Eye at an On-axis Point

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