Keratometers; Ophthalmometers; Ophthalmoscopes; Tonometers; Cards printed with lines of varying widths used for testing and analyzing vision; Eye testing apparatus; Eye testing machines and apparatus; Intraocular lenses; Medical exam tables; Medical examination lamps; Medical imaging devices for eyes; Microscopes for surgical operations; Ophthalmic cameras for medical purposes; Optometric instruments for locating the optical center of ophthalmic lenses; Optometric instruments, namely, instrum...