METHOD FOR PREPARING RIGID CORNEAL CONTACT LENSES
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United States of America Patent
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Sep 5, 2019
app pub date -
Feb 25, 2017
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Nov 18, 2016
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Abstract
A method for preparing rigid corneal contact lenses, comprising: designing a lens mold in advance, using a high oxygen permeability siloxane material to react with other polymeric monomers, directly preparing lenses under photocuring or thermocuring processing conditions, and then using the mold to shape in one step. The method can improve the productivity and solve the problems of long processing cycle, low productivity and poor reproducibility of the traditional turning process.
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