Cards printed with lines of varying widths used for testing and analyzing vision; Eye charts for medical examination use; Eye testing apparatus; Eye testing machines and apparatus; Headlight lens modules for medical and surgical use; Medical and surgical apparatus and instruments for use in ophthalmic procedures; Medical apparatus and instruments for use in ophthalmic procedures; Medical imaging devices for eye; Ophthalmic cameras for medical purposes; Optometric autorefractors; Optometric in...