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December 1990

A Barrier Plaque Designed to Prevent Conjunctival Adhesions

Author Affiliations

New York, NY

Arch Ophthalmol. 1990;108(12):1669-1670. doi:10.1001/archopht.1990.01070140023008

To the Editor.  —Cryotherapy has been used as treatment for biopsy-proved malignant melanoma of the conjunctiva and as an adjuvant to resection of squamous and sebaceous carcinomas.1-3 Reported complications include the development of conjunctival adhesions.1-3 Glass rods have been used to mechanically break these adhesions in what is often a painful procedure. For a patient treated with cryotherapy to the entire bulbar conjunctiva for diffuse multifocal conjunctival melanoma, we constructed an individually molded, suture-fixed, plaquelike device to act as a barrier between the bulbar and palpebral conjunctiva.The method for forming, fabricating, and fitting the barrier plaque was similar to that of a flush-fitting scleral lens. A suitably sized and shaped scleral impression tray was placed over the globe. An alginate hydrocolloidal suspension was injected through the anterior tunnel of the impression tray onto the entire surface of the patient's globe. The alginate impression hardened to the consistency of soft

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