. A chart used to test vision acuity
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. A chart used to test vision acuity
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Answer:
Snellen Chart
Explanation:
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Answer:
Snellen chart
Explanation:
The visual acuity test is used to determine the smallest letters you can read on a standardized chart (Snellen chart) or a card held 20 feet (6 meters) away. Special charts are used when testing at distances shorter than 20 feet (6 meters). Some Snellen charts are actually video monitors showing letters or images.