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The Pacific Acuity Test is a vanishing optotype test designed with opposing figures to provide a simple forced-choice testing format appropriate for nonverbal children and individuals with developmental disabilities who are unable to respond to standard optotype recognition tests. Each card has two figures, a simple face, and an opposing oval target of the same overall size but with interior details that allow discrimination from the face at the threshold of acuity.
The full test kit consists of 18 cards with two cards at each level. The cards at each acuity level have a different position of the face target compared to the opposing oval figure. Each card can be presented at either 50 cm or 1 meter but the 1 meter test distance is recommended for greater accuracy and comparison to distance visual acuity tests.
The test range from 1.3 LogMAR (20/400) down to 0 LogMAR (20/20) allows for testing a broad range of visual acuity.
PAC Test comes with protective canvas case and isolation mask.