Effect of Sensitivity Disparity Between the Two Eyes on Pointwise Monocular Sensitivity Under Binocular Viewing in Patients With Glaucoma

AI Generated Summary*

Thirteen glaucoma patients tested with a standard perimeter and a head-mounted device that examines one eye while the other stays uncovered were reviewed retrospectively. Pattern deviation status in each eye sorted 624 matched locations into four categories, and weighted data contrasted the less affected eye's thresholds when its fellow was covered versus open. Sensitivity without occlusion was higher where both eyes were normal (P<0.01) and lower where both were abnormal (P<0.05), with no significant difference in mixed categories. Where only the worse eye was abnormal, points favoring the unoccluded condition fell from 51.4% when that eye read 25 dB or more to 22.0% at 0 dB (rs = -0.26). Binocular interaction is proposed, though low-sensitivity variability was not excluded.

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