January 1977
Volume 16, Issue 1
Articles  |   January 1977
Spatio-temporal interactions in anisometropic and strabismic amblyopia.
Investigative Ophthalmology & Visual Science January 1977, Vol.16, 90-95. doi:
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      D M Levi, R S Harwerth; Spatio-temporal interactions in anisometropic and strabismic amblyopia.. Invest. Ophthalmol. Vis. Sci. 1977;16(1):90-95.

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      © ARVO (1962-2015); The Authors (2016-present)

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Contrast sensitivity functions for sinusoidal gratings of different spatial frequencies and stimulus durations have been determined for both eyes of amblyopic subjects. For both long and short stimulus durations, the entire contrast sensitivity function of the amblyopic eyes is lower than that of the nonamblyopic eyes. When the gratings were flickered at 10 Hz, the sensitivity for pattern and flicker detection were similar for both eyes at low spatial frequencies. Possible neural mechanisms for the differences in contrast sensitivity are considered with respect to recent psychophysical and electrophysiological evidence for channels with different spatio-temporal properties in the mammalian visual system.


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