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A new technique of visual field evaluation for unilateral ptosis
Annals of Ophthalmology
|June 1, 1983
Abstract:
A technique of uniocular visual field testing under binocular viewing conditions for evaluation of unilateral ptosis is described. The eye with the nonptotic lid is covered with a red filter, and both eyes fixate the white fixation light while a green test light is used. The resultant field reveals the true functional field loss due to the ptosis and avoids changes due to the patient elevating his brow.