Perform ophthalmic studies including auto refraction, keratometry, tonometry, visual field testing, pachymetry, specular microscopy, ophthalmic photography, potential acuity, brightness acuity, and other studies.• Use and maintain an autorefractor, phoropter, auto and manual keratometer, tonopen, Humphrey and Goldman visual field machines, corneal topographer, A-scan machine, pachymeter, specular microscope, ophthalmic photography equipment, slit lamp, potential acuity meter, brightness acuity test, color vision plates, stereo vision test, and personal computers.• Refractive Research Technician Specific Duties: The duties include, but are not limited to the following;• Perform initial medical screening of patients including history, distance and near visual acuity with and without correction or pinhole, pupillary light reflex, and application tonometry; assist with all aspects of patient care.•