Journal ArticleDOI
The chromatic eye: a new reduced-eye model of ocular chromatic aberration in humans
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TLDR
The reduced eye was further modified by changing the refracting surface to an aspherical shape to reduce the amount of spherical aberration, providing an improved account of both the longitudinal and transverse forms of ocular chromatic aberration.Abstract:
New measurements of the chromatic difference of focus of the human eye were obtained with a two-color, vernier-alignment technique. The results were used to redefine the variation of refractive index of the reduced eye over the visible spectrum. The reduced eye was further modified by changing the refracting surface to an aspherical shape to reduce the amount of spherical aberration. The resulting chromatic-eye model provides an improved account of both the longitudinal and transverse forms of ocular chromatic aberration.read more
Citations
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Journal ArticleDOI
Aberrations of the Eye - Crude Flaws or Ecological Design?
TL;DR: In this paper, the authors discuss the influence of creationism and evolution on our views of the optics of the eye, and provide a thoughtful critique on the role that aberrations play in vision science.
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Matching convolved images to optically blurred images on the retina
TL;DR: In this paper , the effect of ocular aberrations on visual acuity and retinal image quality was investigated using Fourier optics, and the results indicated that the systematic decrease in visual performance with convolved stimuli appears to be primarily associated with a lack of favorable interaction between chromatic and monochromatic aberration in the eye.
Journal ArticleDOI
Understanding In Vivo Chromatic Aberrations in Pseudophakic Eyes Using on Bench and Computational Approaches
M. Vinas-Pena,Alberto de Castro,Carlos Dorronsoro,A. Gonzalez-Ramos,Suad Redzovic,Nicolas Willet,Nuria Garzón,Susana Marcos +7 more
TL;DR: Comparison of chromatic difference of focus and longitudinal chromatic aberrations in pseudophakic patients implanted with different IOL designs and materials and compared them with predictions from computer eye models and on bench measurements with the same IOLs allowed for evaluating in vivo chromatic aberration with different materials and designs.
Dissertation
Development of a fundus camera with adaptive optics using a pyramid wavefront sensor
TL;DR: In this paper, the authors proposed a method to improve the accuracy of 6.8×6.8.0.0% and 6.5×5.8% respectively.
Journal ArticleDOI
The potential for and challenges of spherical and chromatic aberration correction with new IOL designs
TL;DR: Lab studies and modern clinical aberrometers have allowed a large number of eyes to be measured in the last decade showing that aberrations of the unaccommodated eye are dominated by low-order (spherocylindrical refractive errors), third- order (coma and trefoil) and fourth-order spherical aberration (SA), as well as chromatic aberration.
References
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Journal ArticleDOI
The Frequency Response of a Defocused Optical System
TL;DR: In this paper, the response of a defocused aberration-free optical system to line-frequencies in the object is studied analytically, and curves are given showing the response as a function of line-frequency for a range of values of defect of focus.
Journal ArticleDOI
Saccadic eye movements towards stimuli triggered by prior saccades.
P.E. Hallett,A.D. Lightstone +1 more
TL;DR: The only finding reminiscent of perceptual “saccadic suppression” and mislocation effects is that a target which steps to a position ahead of a saccade is sometimes ignored.
Journal ArticleDOI
Theory and measurement of ocular chromatic aberration.
TL;DR: One implication of these results is that, although the eye has substantial chromatic aberration, the pupil is positioned so as to minimize the transverse component of the aberration for central vision, thereby optimizing foveal image quality for polychromatic objects.
Journal ArticleDOI
The change in refractive power of the human eye in dim and bright light.
George Wald,Donald R. Griffin +1 more
TL;DR: It is concluded that setting optical instruments about 0.4 diopter more negatively in dim than in bright light is justified on the basis of the chromatic aberration of the eye.