When Performing a Visual Acuity Test Using the Snellen Letter

When performing a visual acuity test using the Snellen letter chart, the patient should ____.

A) close the eye not being tested
B) stand with heels at the 20-foot mark
C) start reading the chart at the 40-foot line
D) stand with toes at the 20-foot mark
E) hold the chart at arm's length

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