May 1981
Volume 20, Issue 5
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Articles  |   May 1981
Amblyopic abnormality involves neural mechanisms concerned with movement processing.
Investigative Ophthalmology & Visual Science May 1981, Vol.20, 695-700. doi:
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      I Rentschler, R Hilz, H Brettel; Amblyopic abnormality involves neural mechanisms concerned with movement processing.. Invest. Ophthalmol. Vis. Sci. 1981;20(5):695-700.

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

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Abstract

In strabismic amblyopia the detection of apparent movement for counterphase gratings is considerably more impaired than the detection of pattern. No such anomaly is found for the detection of changes from a blank field when gradual or abrupt onsets or offsets of the temporal grating presentation are used. Similarly, normal peripheral vision is relatively poor in detecting alternation of spatial phase. It is concluded that the observed movement abnormality does not reflect a loss in sensitivity of transient mechanisms but rather a visual insensitivity to spatial phase. This would explain why perceptual distortions and low optotype acuity occur in amblyopes with normal contrast sensitivity.

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