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The Afferent Pupillary Defect in Asymmetric Glaucoma
Reay H. Brown, MD;
John D. Zilis, MD;
Mary G. Lynch, MD;
George E. Sanborn, MD
Arch Ophthalmol. 1987;105(11):1540-1543.
Abstract
• The OCTOPUS 2000 perimeter and a central 30° program were used to study consecutively 27 patients with glaucoma who had either a relative afferent pupillary defect (APD) or asymmetric optic nerve cupping without an APD. The mean difference in visual field sensitivity between fellow eyes was 48.2% (range, 13% to 93%) for the APD group and 5.5% (range, 0% to 9.0%) for the non-APD group. The mean difference in cup-disc ratio was 0.43 (range, 0.2 to 0.6) for the APD group and 0.24 (range, 0.2 to 0.3) for the non-APD group. The APD depth was quantitated with neutral density filters and correlated with visual field asymmetry but not with cup-disc ratio asymmetry. There was no overlap between the APD and non-APD groups in the amount of visual field asymmetry: Every patient with a sensitivity difference of 13% or greater had an APD. The presence of an APD indicates that a threshold of asymmetric optic nerve damage has been exceeded. With automated perimetry, this threshold can be quantitated and may improve the assessment of patients with glaucoma.
Author Affiliations
From the Department of Ophthalmology, University of Texas Health Science Center, Dallas.
Footnotes
Accepted for publication July 16, 1987.
Reprint requests to Department of Ophthalmology, University of Texas Health Science Center, 5323 Harry Hines Blvd, Dallas, TX 75235-9057 (Dr Brown).
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