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Interocular transfer of the movement aftereffect in central and peripheral vision of people with strabismus
Journal article   Open access   Peer reviewed

Interocular transfer of the movement aftereffect in central and peripheral vision of people with strabismus

R.P. O'Shea, A.A. McDonald, A. Cumming, D. Peart, G. Sanderson and A.C.B. Molteno
Investigative Ophthalmology and Visual Science, Vol.35(1), pp.313-317
1994
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Abstract

Purpose. To compare binocularity in central and peripheral vision of people with early-onset strabismus and people with normal binocular vision. Methods. Ten subjects with early-onset strabismus, and nine subjects with normal binocular vision were tested. To assess binocularity, interocular transfer (IOT) of a rotary movement aftereffect (MAE) was measured. The MAE stimuli were either confined to the central 2.8° of the visual field or were presented 10° into peripheral vision. Results. In peripheral vision, there was no significant difference in IOT for the two groups of subjects. In central vision, there was a significant decrease of IOT in subjects with early-onset strabismus. Their IOT was, however, significantly greater than zero. Conclusions. Early-onset strabismus appears to spare binocularity in peripheral vision but reduces it in central vision. It does not abolish binocularity assessed by IOT of MAE, suggesting that some binocular connections survive early-onset strabismus, even in central vision

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