Perform pre-exam testing to include visual acuity assessment, including pinhole and glare testing, confrontational visual field testing, assess extraocular muscles, pupillary evaluation, tonometry, assess angles, pupillary dilation, and all other patient services as requested by the physician including special tests such as color vision screening, stereopsis, and dry eye testing. Direct Patient Contact: Technicians interact directly with patients, taking histories, performing tests, and assisting with procedures, necessitating strong interpersonal and communication skills, according to some job descriptions.