The Visual Acuity test is an assessment of distance vision. There are two tests: Visual Acuity Ages 3–7 and Visual Acuity Ages 8+. Participants are asked to sit 3 meters (9.8 feet) from the iPad and verbally identify the letters that appear on the screen. Younger participants may choose to point to the same letter on a card in front of them instead of saying the letters verbally. Different sets of optotypes (letters) are used for children and adults.
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