Time‐of‐day variations in oculomotor function: II. Steady‐state accommodation to square‐wave gratings
- 1 October 1988
- journal article
- research article
- Published by Wiley in Ophthalmic and Physiological Optics
- Vol. 8 (4) , 423-426
- https://doi.org/10.1111/j.1475-1313.1988.tb01179.x
Abstract
Time-of-day variations in both tonic accommodation and steady-state accommodation to a grating were assessed for 16 observers who were tested once in the morning and again 12 hours later. The mean night-time tonic accommodation was +0.5 D greater than the morning value. Square-wave gratings of 4.2 and 8.4 c/deg were presented to the observers at distances of 0, 1.07, 2.13, 3.2 D. Over-accommodation to far targets and under-accomodation to near targets occurred for both gratings. All values of steady-state accomodation were somewhat greater in the evening. Large individual difference were noted.This publication has 9 references indexed in Scilit:
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