Eye charts for medical examination use; Eye droppers for medical purposes; Eye testing machines and apparatus; Microscopes for surgical operations; Ophthalmic cameras for medical purposes; Optometric instruments for locating the optical center of ophthalmic lenses; Optometric instruments, namely, instruments for measuring the diameter of ophthalmic lenses; Surgical apparatus and instruments for use in ophthalmic surgery; Surgical apparatus for use in ophthalmic surgery; Surgical instruments f...