Performs external, intraocular, and fluorescein angiographic photography; Processes angiography film for physicians evaluation and treatment prescription; Sorts, labels, and mounts photographs; Maintains files of visual fields and diagnostic ultrasound materials for diagnostic evaluation; Performs diagnostic visual field testing; Performs diagnostic ultrasound (B-scan); Maintains files of diagnostic ultrasound materials for evaluation; Performs measurements and calculations for intraocular lens implants (A-scan) prior to cataract extractions; Performs keratometry and provides refractive information on post surgical patients to physicians; Assists in routine patient handling with performance and recording of visual acuities, patient history, tonometry measurements, and general screening techniques; Evaluates therapeutic contact lens fitting and assists physicians in follow-up of patients; Maintains diagnostic equipment by cleaning, inspecting, and troubleshooting more complex problems; Maintains supply of materials needed for various diagnostic procedures; Obtains medical records for chart checks; Observes and reports any unusual complaint or condition of patients; Assists in scheduling patient appointments; Performs related work as required. Ability to: Perform a variety of routine and complex ophthalmic and patient care tests and services; Gather and record patient ocular and physical history; Perform a variety of diagnostic and measurement techniques (A-Scan, B-Scan, ultrasound, etc.); Perform regular maintenance and troubleshooting procedures on clinic equipment; Understand and follow written and oral English instructions; Provide direct ophthalmic patient care; Use English, communicate effectively both verbally and in written form; Organize priorities and follow through with assignments in a timely manner; Maintain positive relationships with patients and co-workers.