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Article
May 1975

Expandable Silicone Implants for Scleral BucklingIII. Experiments in Vivo

Author Affiliations

From the Retina Foundation, Boston. Dr. Huamonte is now with the University of Illinois Eye and Ear Infirmary, Chicago.

Arch Ophthalmol. 1975;93(5):354-356. doi:10.1001/archopht.1975.01010020366010
Abstract

Experimental scleral buckling was obtained in rabbits by using expandable silicone rubber implants under scleral trap doors. Buckle heights ranged from 2.3 to 4 mm after injection of 0.05 to 0.15 ml of fluid into the implants. The rate of decrease in buckle height followed up ophthalmoscopically for five months, was found to be slow and continuous and was caused mainly by loosening of the scleral flaps rather than by the diffusion of fluid from the implants. Implants expanded with chloramphenicol solutions provided sustained release of the antibiotic in the area of the operation. This was confirmed in agar plates by inhibition of the growth of Sarcina lutea around subimplant tissues and the expanded implants that were recovered post mortem. These implants provide an opportunity to modify the buckle height easily, either during the procedure or postoperatively.

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