2012
DOI: 10.1364/boe.3.000681
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Comparison of retinal image quality with spherical and customized aspheric intraocular lenses

Abstract: We hypothesize that an intraocular lens (IOL) with higher-order aspheric surfaces customized for an individual eye provides improved retinal image quality, despite the misalignments that accompany cataract surgery. To test this hypothesis, ray-tracing eye models were used to investigate 10 designs of mono-focal single lens IOLs with rotationally symmetric spherical, aspheric, and customized surfaces. Retinal image quality of pseudo-phakic eyes using these IOLs together with individual variations in ocular and … Show more

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Cited by 14 publications
(13 citation statements)
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“…2 The minimization of such aberrations should physically lead to an optimization of the retinal image quality and thus enhance vision compared with the effect obtained with a spherical IOL. 3 However, with a variety of other optical parameters affecting the retinal image and a vast array of sequential steps of neural processing determining the perceived image, the perceived net effect of the asphericity of an IOL has continuously been disputed since their introduction to the market. Indeed, although the physical concept of incorporating the asphericity of the young crystalline lens may be immediately convincing, the effective advantage over a spherical IOL may differ in various aspects of vision.…”
mentioning
confidence: 99%
“…2 The minimization of such aberrations should physically lead to an optimization of the retinal image quality and thus enhance vision compared with the effect obtained with a spherical IOL. 3 However, with a variety of other optical parameters affecting the retinal image and a vast array of sequential steps of neural processing determining the perceived image, the perceived net effect of the asphericity of an IOL has continuously been disputed since their introduction to the market. Indeed, although the physical concept of incorporating the asphericity of the young crystalline lens may be immediately convincing, the effective advantage over a spherical IOL may differ in various aspects of vision.…”
mentioning
confidence: 99%
“…Two cameras have been used: Ultra-widefield (UWF TM ) Optos California (figs. 3,7,8) and Zeiss VISUCAM ® 500 (figs. 4,5,6).…”
Section: Results Using Real Pre-and Post-operative Eye Fundus Image Pmentioning
confidence: 99%
“…The function _`a(. ) takes as input 7 J E , performs orthogonal projection of all its elements along vector D E , and averages the elements that after projection fall on the same discrete (8,9) coordinates. With _`a(. )…”
Section: A Anisotropy-based Focus Measure To Assess Retinal Image mentioning
confidence: 99%
“…Despite many variations in the pseudophakic eye's biometry and physiological parameters, the aspheric monofocal IOL still performs better than a spherical IOL. 9 For an aspheric DIOL, a theoretical simulation paper claimed that for large populations there is small percentage improvement if the DIOL has add-on of −0.1 μm SA (6 mm). 10 For IOL evaluation, adaptive optics is a convenient facility to manipulate wavefront aberration.…”
Section: Introductionmentioning
confidence: 99%