Certified Clinical Medical Assistant CCMA Practice Test

Question: 1 / 400

When performing a visual acuity test using a Snellen chart, at which distance should the MA have the patient stand from the chart?

5 feet

10 feet

15 feet

20 feet

When performing a visual acuity test using a Snellen chart, the patient should stand 20 feet away from the chart. This standard distance is established to ensure that the test accurately measures visual acuity under conditions that simulate normal viewing distances. The Snellen chart is designed so that letters are proportionately sized to be readable from this distance, allowing healthcare providers to assess a patient's ability to see at various levels of clarity.

Standing at 20 feet enables the eye to focus properly on the letters displayed, allowing for a thorough evaluation of the patient's vision. This distance also allows the testing to reflect standard practices in eye examinations, which are critical for diagnosing visual impairments and determining the necessity for corrective lenses or further investigation into eye health.

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