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Article
May 1983

Baring of a Circumlinear Vessel in Glaucoma

Author Affiliations

From the Department of Ophthalmology, University of Iowa, Iowa City.

Arch Ophthalmol. 1983;101(5):739-744. doi:10.1001/archopht.1983.01040010739007
Abstract

• We independently examined 144 optic disc stereophotographs. Despite a preliminary learning trial, we were able to agree about the presence of a circumlinear vessel in only 73% of eyes and about baring of a vessel, if present, in only 71% of eyes. Bared vessels were present in 73% of 22 glaucomatous eyes, 41% of 71 ocular hypertensive eyes, and 14% of 51 normal eyes. During several years of follow-up of 44 ocular hypertensive eyes with bared circumlinear vessels, visual field defects developed in only three. We conclude that baring of a circumlinear vessel is a difficult sign for trained observers to detect with certainty and, although present frequently in glaucoma, is of low specificity as a sign or predictor of glaucomatous damage.

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