Paragon Vision Sciences, Inc. FSA 38 FSA 38

FSA 38 (paflufocon E) rigid gas permeable contact lenses for daily wear are available as lathe cut or molded firm contact lenses with spherical, aspheric, bifocal or toric anterior, posterior or bitoric surfaces in clear and tinted versions. The posterior curve is selected so as to properly fit an individual eye and the anterior curve selected to provide the necessary optical power to correct refractive error. A peripheral curve system on the posterior surface allows tear exchange between the lens and the cornea.The FSA 38 (paflufocon E) rigid gas permeable contact lens material is a thermoset copolymer derived from fluorosilicone acrylate monomer.