Canthoplasty

A surgical operation for lessening the pressure and friction ofthe upper lid by cutting the outer canthus.Plastic c. operation, an operation for restoring alost part.

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.