Manufactures optical sighting devices, controlling devices & measuring equipment Ophthalmic retinoscopes, Ophthalmic slit lamps, Ophthalmic spectrophotometers, Ophthalmic specula, Ophthalmic tonometers or accessories, Ophthalmic transilluminators, Ophthalmic visual field plotters, Ophthalmic visual function analyzers, Ophthalmic visuometers, Ophthalmometers