Finnemore V M, Korb J E
J Am Optom Assoc. 1980 Mar;51(3):271-4.
An evaluation was made of the incidence of corneal edema with polymethylmethacrylate (PMMA) contact lenses and Polycon (silafocon A) lenses of identical design. Edema occurred significantly more frequently with PMMA than with Polycon lenses.