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Article
February 1964

Flap Perforation in Glaucoma Surgery Sealed by a Tissue Patch

Author Affiliations

Baltimore
From The Wilmer Ophthalmological Institute of The Johns Hopkins Hospital and University.

Arch Ophthalmol. 1964;71(2):215-218. doi:10.1001/archopht.1964.00970010231016
Abstract

The perforation of the flap consisting of conjunctiva and Tenon's capsule is a serious complication in a glaucoma filtering operation. It results in a collapsed anterior chamber and hypotony. Closing the perforation is most difficult1-6 especially if it occurs at the limbus over the sclerectomy. At this point, the conjunctiva is so thin and friable that it is virtually impossible to achieve a watertight closure by suturing to the more rigid cornea. A second layer of conjunctiva, however, used as a tissue patch, will seal the hole effectively without the necessity for sutures in the immediate operative area.

In the posterior lip sclerectomy,7 the initial incision is 8 mm behind the limbus (Fig 1, A and B). The conjunctiva and Tenon's capsule are undermined as far as the Tenon's scleral reflection (Fig 2, A and B). It is at this point, the anterior limit of the undermined area,

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