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
New intraocular lens for achromatizing the human eye
TL;DR: The hybrid singlet achromatic IOL design resolved the chromatic aberration problem, improving the overall optical quality in the human eye.
Journal ArticleDOI
Ocular aberrations with ray tracing and Shack-Hartmann wave-front sensors: Does polarization play a role?
TL;DR: The results indicate that the differences in retardation across the pupil imposed by corneal birefringence do not produce significant phase delays compared with those produced by aberrations, at least within the accuracy of these techniques.
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Changes in through-focus spatial visual performance with adaptive optics correction of monochromatic aberrations
TL;DR: In this paper, the influence of adaptive optics correction on through-focus illiterate-E visual acuity and throughfocus contrast sensitivity under monochromatic conditions was determined, and the results showed that full correction of higher-order aberrations may worsen spatial visual performance in the presence of some defocus.
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Effect of coma and spherical aberration on depth-of-focus measured using adaptive optics and computationally blurred images
TL;DR: These data confirm that defocus in the retinal image can be generated by optical or computational methods and that both can be used to assess the effect of higher‐order aberrations on depth of focus.
Journal ArticleDOI
The prospects for perfect vision.
TL;DR: The purpose of this brief article is to frame the questions in terms that are understandable to clini-cians and visual scientists alike, and at the same time to expose some of the complexity of the issues raised.
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.