Perlstein S H
Ann Ophthalmol. 1983 Jun;15(6):545-6.
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.
描述了一种在双眼观察条件下进行单眼视野测试以评估单侧上睑下垂的技术。非下垂眼睑的眼睛用红色滤光片覆盖，双眼注视白色固视灯，同时使用绿色测试灯。由此产生的视野显示了由于上睑下垂导致的真正功能性视野缺损，并避免了因患者抬高眉毛而引起的变化。
