Snellen Eye Chart: Visual Acuity Test Procedure
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Questions and Answers

What is the purpose of using the Snellen eye chart?

  • To examine depth perception
  • To test visual acuity (correct)
  • To assess peripheral vision
  • To test color vision
  • After positioning the patient 20 feet away from the Snellen eye chart, how should you proceed to test each eye?

  • Cover one eye with an opaque card or gauze (correct)
  • Use polarized glasses
  • Apply pressure to both eyes
  • Test both eyes simultaneously
  • If a patient wears corrective lenses, what is the recommended approach when testing visual acuity with the Snellen eye chart?

  • Start testing with both eyes covered
  • Test without glasses first (correct)
  • Record both results together
  • Test with glasses on first
  • In cases where visual acuity recorded is less than 20/20, what additional test can be performed to determine the cause of decreased acuity?

    <p>Pinhole test</p> Signup and view all the answers

    What is the purpose of the Rosenbaum pocket vision screener?

    <p>To test near vision in each eye separately</p> Signup and view all the answers

    Which condition would be suspected if a patient reports straight lines looking irregular or bent?

    <p>Macular degeneration</p> Signup and view all the answers

    If a patient experiences objects appearing smaller in one eye, what term is commonly used to describe this symptom?

    <p>Micropsia</p> Signup and view all the answers

    While assessing extraocular muscles, which test can be performed to determine the direction of deviation of a strabismic eye?

    <p>Cover-uncover test</p> Signup and view all the answers

    In the cover-uncover eye test for strabismus, what should be observed when covering one eye?

    <p>Movement of the uncovered eye as it focuses on a point</p> Signup and view all the answers

    If a patient is asked to cover their right eye during a confrontation test, which eye should you cover as the examiner?

    <p>Left eye</p> Signup and view all the answers

    What is the purpose of the cover-uncover eye test in assessing strabismus?

    <p>To assess the ability of both eyes to fixate on an object</p> Signup and view all the answers

    During a confrontation test for peripheral vision, how should the examiner and patient position themselves?

    <p>Opposite each other at eye level with one eye covered each</p> Signup and view all the answers

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