AAMA CMA Practice Question

The confrontation visual field test is a quick, equipment-free method for grossly evaluating peripheral vision. The patient covers one eye and fixates on a central target while the examiner brings fingers or a small object from the periphery toward the center, noting when the patient first perceives the stimulus. This screens for large visual-field defects.

Automated perimetry requires specialized devices (e.g., a Humphrey Field Analyzer) and is usually performed by trained technicians, not in an immediate pre-exam screen. The Amsler grid is a small printed chart that evaluates the central 10-20° of vision, so it does not test peripheral fields. A Snellen chart measures visual acuity-how clearly a patient sees high-contrast letters-but provides no information about visual field extent.