Abstract
The eye has very high errors of refraction in the periphery of vision, in addition to any refractive errors "on-axis" and these errors usually increase with peripheral distance (Smith and Atchison, 1997) and vary greatly from person to person. Although these errors are not critical for resolution tasks, because these are limited by the neural system (Green, 1970 and Millodot et al., 1975), the errors can have consequences for detection in the periphery. It has been shown that correcting such errors can improve detection thresholds, including detection of movement, (Leibowitz et al. 1972, Johnson and Leibowitz 1974, Wang et al. 1997).
© 2000 Optical Society of America
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