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Karl R. Olsen, MD; Mark Blumenkranz, MD; Eleut Hernandez; Anthony Hajek, PhD; Michael Hartzer, PhD

Arch Ophthalmol. 1988;106(6):812-815.

Abstract
• We evaluated the efficacy of intraocular and periocular fluorouracil treatment in an experimental iris tumor of the rabbit (Greene amelanotic melanoma). Four consecutive intravitreal injections of 1 mg of fluorouracil given twice weekly completely suppressed tumor growth in all treated eyes for six weeks if treatment was initiated 24 hours after tumor implantation. In contrast, all control eyes implanted with an equal number of Greene melanoma cells but treated with intravitreal saline developed massive tumor invasion of the iris within two weeks. Additional subconjunctival therapy following intravitreal therapy for two weeks was only slightly more effective than intravitreal therapy alone. If therapy was delayed for one week, the iris tumors became macroscopically visible and subsequent treatment with intravitreal and subconjunctival fluorouracil was of limited value in suppressing growth.

Author Affiliations
From the Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami School of Medicine (Drs Olsen and Hajek and Mr Hernandez); and the Eye Research Institute of Oakland University, Rochester, Mich (Drs Blumenkranz and Hartzer).

Footnotes
Accepted for publication Dec 16, 1988.

Read before the Annual Meeting of the Association for Research in Vision and Ophthalmology, Sarasota, Fla, May 1, 1984.

Reprint requests to Bascom Palmer Eye Institute, PO Box 016880, Miami, FL 33101 (Dr Olsen).

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