12 results about "Oxygen permeability" patented technology

Oxygen permeability (OP) is a parameter of a contact lens that expresses the ability of the lens to let oxygen reach the eye by diffusion. In soft contact lenses, it is dependent on the thickness of the lens and the material of the lens, especially concerning the water content. Because of this dependence on thickness, Transmissibility level (abbreviated Dk/t), the Dk per thickness of the lens, is more commonly used.