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Teflon-coated platinum–iridium wires are placed in the vitreous as electrodes in artificial vision systems. The purpose of this study was to determine whether these wires have toxicity in the vitreous cavity, and to examine the durability of their coating when grasped by forceps. Rabbits were implanted with platinum–iridium wires that were 50 μm in diameter and coated with Teflon to a total diameter...
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