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Role of ocular aberrations in dynamic accommodation control
Clinical and Experimental Optometry, 2009Accommodation control is mediated by a number of cues, including blur,chromatic aberration and target proximity. Data from wavefront measurements have shown clear shifts in ocular aberrations during increasing accommodative demand, most notably a negative shift in spherical aberration. Work in adaptive optics, where aberrations have been corrected, has
Chin, Sem Sem +2 more
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Modification of pattern reversal VERs by ocular accommodation
Vision Research, 1985The amplitudes and implicit times of the P-1 component of monocular transient pattern VERs elicited by reversing checkerboard targets were measured in 6 conditions: (1) Ocular accommodation (Ao) elicited by minus power ophthalmic lenses; (2) Ao stimulated by minus lenses with the natural pupil of the test eye dilated and replaced by an artificial pupil;
J V, Lovasik, M, Spafford, M, Szymkiw
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Changes in ocular dimensions and refraction with accommodation
Ophthalmic and Physiological Optics, 1997The purpose of this study was to measure the changes in ocular dimensions with accommodation, with particular reference to the radius of curvature of the posterior surface of the crystalline lens. The increase in power of the eye with accommodation is considered to arise primarily from a decrease in the radius of curvature of the anterior surface of ...
L F, Garner, M K, Yap
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Volume change of the ocular lens during accommodation
American Journal of Physiology-Cell Physiology, 2007During accommodation, mammalian lenses change shape from a rounder configuration (near focusing) to a flatter one (distance focusing). Thus the lens must have the capacity to change its volume, capsular surface area, or both. Because lens topology is similar to a torus, we developed an approach that allows volume determination from the lens cross ...
R, Gerometta +3 more
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A Biometric Study of Ocular Changes During Accommodation
American Journal of Ophthalmology, 1993We performed a biometric study that used A-mode ultrasonography on 106 subjects during ocular accommodation. The subjects were divided into two groups; group 1 included 76 subjects and group 2 included 30 subjects. In group 1, we measured the anterior chamber depth, lens thickness, and axial length in the right eye while the left eye, wearing ...
P J, Shum, L S, Ko, C L, Ng, S L, Lin
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Vestibular-ocular accommodation reflex in man.
Aviation, space, and environmental medicine, 1976Stimulation of the vestibular system by angular acceleration produces widespread sensory and motor effects. The present study was designed to study a motor effect which has not been reported in the literature, i.e., the influence of rotary acceleration of the body on ocular accommodation.
B R, Clark, R J, Randle, J D, Stewart
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Caffeine alters the dynamics of ocular accommodation depending on the habitual caffeine intake.
Experimental Eye Research, 2019Beatríz Redondo +4 more
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