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Title: New design concepts for permeable rigid contact lenses. Author: Williams CE. Journal: J Am Optom Assoc; 1979 Mar; 50(3):331-6. PubMed ID: 448013. Abstract: Gas permeable rigid lens materials offer the opportunity to reevaluate contact lens design. This paper presents the rationale and procedures followed in the development of a design concept for the Polycon lens material.[Abstract] [Full Text] [Related] [New Search]