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Article
July 1981

Acute Pressure Elevation Following Panretinal Photocoagulation

Author Affiliations

From the Department of Ophthalmology, University of Iowa Hospitals, Iowa City. Dr Blondeau is now with the University of Sherbrooke, Sherbrooke, Quebec.

Arch Ophthalmol. 1981;99(7):1239-1241. doi:10.1001/archopht.1981.03930020113011
Abstract

• Intraocular pressure increased in 17 of 18 eyes treated for diabetic retinopathy with argon laser panretinal photocoagulation. All eyes had open anterior chamber angles before treatment. Fifteen eyes, including the eye with no pressure rise, continued to have open angles when first examined after treatment. The pressure elevation in these eyes averaged about 10 mm Hg, was detected soon after laser treatment, and persisted for several hours. Outflow facility usually was reduced. Three eyes had closed angles and elevated pressures when first examined after treatment. In addition, in five eyes that initially had open angles, angle closure developed later. Thus, the pressure elevation after extensive retinal photocoagulation usually begins with an openangle mechanism, but later may be due to angle closure as well. The reason for the pressure rise with an open angle is unknown.

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