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How is a Snellen Test Chart used to diagnose myopia?

The Snellen Test Chart is the eye chart where you read the letters with one eye covered. The letters get smaller in each row. During this test, you stand approximately 20 feet away from the chart. This is done to evaluate your distance vision, identifying how well you see at 20 feet when compared to the average person.

Continue Learning about Myopia (Nearsightedness)

How common is low myopia in the general population?
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Low myopia is a common type of refractive error that affects children and adults. The rate of incide...
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What is low myopia?
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Low myopia is a mild form of nearsightedness. Myopia can be referred to in degrees of severity: low,...
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What is the rate of incidence of myopia?
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Myopia is a common vision impairment. It is found in approximately 25 percent of people in the Unite...
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How common is high myopia?
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High myopia is a common cause of blindness. Rate of incidence varies between ethnic groups, with a h...
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