Knowledge of basic visual testing and diagnostic procedures, including pupillary measurement, visual acuity, extraocular muscle assessment, confrontation visual field testing, auto lensometry, auto refraction, Tonopen and/or iCare intraocular pressure measurement, as well as basic Slit lamp skills such as Goldmann tonometry and anterior chamber angle assessment. Facilitates patient care by performing the preliminary work up of the patient, including obtaining all past medical records and performing preliminary eye function testing needed for the clinician to diagnose and treat eye conditions.