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Article
September 1989

Ocular Pneumoplethysmography in Giant-Cell Arteritis-Reply

Author Affiliations

Philadelphia, Pa

Arch Ophthalmol. 1989;107(9):1279. doi:10.1001/archopht.1989.01070020349008
Abstract

In Reply.  —I appreciate the careful attention Dr Bates gave to our article. However, I disagree with his concerns about the safety and utility of OPG-Gee testing in the setting of possible GCA.Ocular pneumoplethysmography has proved to be remarkably safe in more than 1 million procedures during the last 15 years. Several large series have not reported ophthalmic complications,1,2 and, to my knowledge, the only reported mishap during testing is displacement of one iris plane intraocular lens3 that was repositioned without surgery. This safety record may be related to the fact that the human globe is accustomed to transient elevations of intraocular pressure, such as during eye rubbing, to levels of well above that used in the test.4,5Dr Bates suggests that GCA may create a "thrombogenic environment" and that OPG-Gee testing may be dangerous in this setting. He offers no histologic, experimental, or clinical data

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