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Vision Res. 1991;31(7-8):1445-7.

Visual resolution limits in human albinism.

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U.M.I.S.T., Department of Optometry and Vision Sciences, Manchester, U.K.


The effects of the involuntary ocular oscillations on visual resolution was examined in 22 albinos and 11 idiopaths with congenital nystagmus. The idiopaths showed a linear relationship between the proportion of the slow phase spent at low velocities (less than or equal to deg/sec) and the log of the minimum angle of resolution; such that long dwell times were compatible with good resolution. For the albinos there appeared to be a critical duration of low retinal slip velocities above which there was no improvement in acuity. This supports the contention that factors other than the congenital nystagmus limit visual resolution in the albino.

[Indexed for MEDLINE]

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