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June 1970

V. Modification of the Vitreous Scissors

Author Affiliations

From the Department of Retina Research, Retina Foundation and Retina Service, Massachusetts Eye and Ear Infirmary, Boston. Dr. Couvillion was a research fellow at the Retina Foundation under the sponsorship of the Heed Ophthalmic Foundation.

Arch Ophthalmol. 1970;83(6):722-723. doi:10.1001/archopht.1970.00990030722009

NEW vitreous scissors have been successful in cutting vitreous membranes.1 Hypotony, due to leakage of fluid vitreous through the spring-loaded tube of the instrument and at the sclerotomy site along the outside of the shaft of the instrument, has been one of the major complications encountered. With marked hypotony, the cornea caves in, and visualization of fundus details is lost. Continued use of the instrument then becomes dangerous, and the instrument must be removed from the eye. Ocular pressure is then restored by injecting saline into the vitreous cavity.

To prevent leakage of fluid vitreous through the scissors, the spring-loaded tube, handle, and end cap have been packed with silicone grease or with spermacetti ointment. A mattress suture over the sclerotomy site has helped to approximate the edges of the incision snugly against the side of the instrument. Despite these measures, leakage has occurred.

This report describes the incorporation

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