Word: polymethyl
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Dates: during 1960-1969
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...outer part of the transplanted human cornea can be left in place, cloudy as it is. Dr. Stone removes most of the thickness in the center, and sets in place a narrow, artificial cornea made of polymethyl methacrylate surrounded by a Teflon skirt (see diagram). The very center of the device is threaded so that it can be moved in or out to adjust its optical characteristics. And if the patient should need further major surgery, the plug can be unscrewed all the way, giving the surgeon direct access to the inside of the eyeball. As for the inside, where...
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