A professional who performs any combination of following tasks to assist optometrist . Responsibilities include:

• Obtains and records patient's preliminary case history.
• Maintains records, schedules appointments, performs bookkeeping, correspondence, and filing.
• Prepares patient for vision examination; assists in testing for near and far acuity, depth perception, macula integrity, color perception, and visual field, utilizing ocular testing apparatus.
• Instructs patient in care and use of glasses or contact lenses.
• Works with patient in vision therapy.
• Assists patient in frame selection.
• Adjusts and repairs glasses.
• Modifies contact lenses.
• Maintains inventory of materials and cleans instruments.
• Assists in fabrication of eye glasses or contact lenses.