Contact Lenses

Lenses that are placed on the corneal surface or sclera. They have either anoptical, therapeutic or cosmetic purpose.

Source: Ophthalmic Dictionary including pronunciation, derivation and definition of the words used in Optometry and Ophthalmology by James J. Lewis, Oph. D. Professor of Optometry in the Northern Illinois College of Ophthalmology and Otology, Chicago.