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
Symmetric visual response to positive and negative induced spherical defocus under monochromatic light conditions.
Alexander Leube,Stephanie Kostial,Stephanie Kostial,G. Alex Ochakovski,Arne Ohlendorf,Arne Ohlendorf,Siegfried Wahl,Siegfried Wahl +7 more
TL;DR: Under monochromatic light conditions, myopes show a symmetric sign‐dependency regarding the influence of spherical defocus on visual acuity, which indicates that the human visual system is capable of integrating the chromatic differences in refraction to distinguish between the signs of defocus.
Journal ArticleDOI
Temporal color contrast guides emmetropization in chick.
TL;DR: Predictable changes in cone contrast and temporal frequency of the retinal image that occur with LCA and defocus result in homeostatic control of emmetropization.
Dissertation
Polychromatic adaptive optics to evaluate the impact of manipulated optics on vision
TL;DR: The understanding of the interactions of these aberrations and their effect upon correction is essential to explore the limits of human spatial vision, and to design and optimize new alternatives of correction of Presbyopia/Myopia and more complex individualized refractive corrections.
Dissertation
Spatio-Temporal Visual Response for Ocular Correction of Higher-Order Aberrations
TL;DR: This study concludes that aberrations not only affect absolute visual performance, but also may adjust the mediative mechanism that articulates spatial and temporal visual representations, and provides a new method for understanding cortical plasticity and visual function.
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.