METHOD AND APPARATUS FOR TREATING AILMENTS

Publication Date

June 28, 1994

Patent Number

EP148242B1

Abstract

An antifogging plastic material is disclosed that is particularly suitable for use as a disposable fog-resistant lens. The lens material comprises a substantially transparent polyester substrate; a layer of polyvinylidene chloride-containing polymer on the polyester substrate; a water permeable colloid layer on the polyvinylidene chloride-containing layer; and a polyvinyl alcohol-containing layer on the water permeable colloid layer.

METHOD AND APPARATUS FOR TREATING AILMENTS