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Contrast Sensitivity After Epikeratophakia
Cornea, 1988Epikeratophakia is a rapidly evolving surgical procedure for the refractive correction of aphakia. Even when Snellen acuity after epikeratophakia is normal, patients often report a subjective degradation of the visual image through the surgically corrected eye.
Craig W. Adams +3 more
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Examination of Contrast Sensitivity
2016A very important ability of ours is that we can recognize relatively small objects. An ability of no less importance is that we can perceive little differences in brightness without a sharp edge. The first ability is measured with the examination of visual acuity, whereas the second one, with that of contrast sensitivity.
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Contrast Sensitivity and Increment Threshold
Perception, 1972The threshold of rectangular and annular increments was established on square-wave gratings of 1 foot lambert mean luminance. In the range of 5–18 cycles/degree the threshold fell as the spatial frequency of the background increased. The threshold change was similar for rectangles and annuli, but the exponent of the curve differed according to the ...
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Contrast Sensitivity and Functional Vision
International Ophthalmology Clinics, 2003How well does a person see faces in a crowd, read a newspaper, or drive an automobile at night? These are vital questions about a person's quality of life and safety. Obtaining answers to these questions requires tests of functional vision.
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Marked dissociation of photopic and mesopic contrast sensitivity even in normal observers
Graefe's Archive for Clinical and Experimental Ophthalmology, 2016Hannah Hertenstein +3 more
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