*Department of Communication and Neuroscience, University of Keele, Keele, Staffordshire ST5 5BG, U.K.
THE EFFECT OF SPATIAL FREQUENCY ON STEADY-STATE ACCOMMODATION
Version of Record online: 19 DEC 2007
Ophthalmic and Physiological Optics
Volume 7, Issue 3, pages 211–217, July 1987
How to Cite
Ward, P. A. (1987), THE EFFECT OF SPATIAL FREQUENCY ON STEADY-STATE ACCOMMODATION. Ophthalmic and Physiological Optics, 7: 211–217. doi: 10.1111/j.1475-1313.1987.tb00735.x
- Issue online: 19 DEC 2007
- Version of Record online: 19 DEC 2007
- Received 19 November 1985, in revised form 8 January 1987
Abstract— Accommodation responses to sinusoidally modulated vertical gratings, at a vergence of -5.0 D, were measured over a 10 min period. Three spatial frequencies were employed: 1.67, 5.0 and 15 cycles degree-1. The results show that 1.67 and 5.0 cycles degree-1 elicit good accommodation responses which are temporally stable. All five subjects employed were unable to maintain an accurate accommodation response to a 15 cycles degree-1 grating. Consideration of the changes occurring in the retinal modulation with accommodative error indicates that spatial frequencies around 5.0 cycles degree-1 are the most useful for accommodation.