Clinical Results with a Ceramic Keratoprosthesis

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A keratoprosthesis made of aluminum oxide ceramic (corundum) was developed following the design of Cardona's threaded keratoprosthesis. The device offered good biocompatibility and tolerance was excellent in experimental animals. This paper describes the indications and surgical techniques for implantation in eyes with conjunctiva present and moderate amount of tears and in dry eyes such as in ocular pemphigoidThe ceramic prosthesis was implanted in IS cases, with follow-up time varying from 1 to 5 years. In 13 cases the device was implanted through the lid and, while initially results were excellent, eventually all but 4 were extruded, removed, or vision lost due to infection. All 5 cases of transconjunctival implantation did well with minimal complications

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