IOVS Journal of General Physiology
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Investigative Ophthalmology & Visual Science, Vol 27, 1414-1417, Copyright © 1986 by Association for Research in Vision and Ophthalmology

ARTICLES AND REPORTS

Stability of the accommodative dark focus after periods of maintained accommodation

RK Tan and DJ O'Leary

The behavior of the accommodative system at rest was investigated following short- (5 min) and long-term (1 hr) accommodative stimuli of either 0.00 D or 3.00 D. The resting position of accommodation changed in the direction of the accommodative stimulus presented. After the 5 min stimulus, the resting position slowly returned toward the pre- stimulus level. After the 1 hr stimulus, the resting state remained significantly different from the pre stimulus level over the subsequent 6 hr. These results suggest that the equilibrium level of accommodation in the dark is determined by a balance of the previous accommodative stimuli.




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Copyright © 1986 by the Association for Research in Vision and Ophthalmology