DPT 6340 Visual System Dysfunction Part 2
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Questions and Answers

What is a characteristic of nystagmus?

  • It is a refractive error
  • It is only found in old age
  • It is often present at birth or soon after (correct)
  • It is caused by a refractive error

    • What is the main reason for decreased acuity in patients with nystagmus?

  • Presbyopia
  • Refractive errors
  • Astigmatism
  • Inability to maintain steady fixation (correct)

    • In a farsighted (hyperopic) eye, where do light rays focus?

  • Outside of the retina
  • In front of the fovea of the retina
  • Behind the fovea of the retina (correct)
  • On the fovea of the retina

    • What is a symptom of astigmatism?

    <p>All of the above</p> Signup and view all the answers

    What happens to the lens in presbyopia?

    <p>It becomes less flexible</p> Signup and view all the answers

    What is a factor that contributes to refractive errors?

    <p>All of the above</p> Signup and view all the answers

    What is Strabismus characterized by?

    <p>A deviation in position of one or both eyes due to muscle imbalance</p> Signup and view all the answers

    What is the most common form of Strabismus?

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

    What is the primary treatment for refractive errors in the absence of disease or other abnormalities?

    <p>Glasses, contacts, or lasik surgery</p> Signup and view all the answers

    What is the effect of wearing glasses on the eyes?

    <p>It has no effect on the degree and progress of myopia</p> Signup and view all the answers

    At what age should Strabismus be identified and treated?

    <p>Before age 2</p> Signup and view all the answers

    What is one way to correct Strabismus?

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

    What is the main symptom of Retinitis pigmentosa?

    <p>Night blindness</p> Signup and view all the answers

    What is a possible complication of untreated Strabismus?

    <p>Vision suppression</p> Signup and view all the answers

    What is the cause of Retinopathy of prematurity (ROP)?

    <p>High oxygen levels in preemies</p> Signup and view all the answers

    Why is collaboration with rehab team crucial for patients with Strabismus?

    <p>To improve recovery outcomes</p> Signup and view all the answers

    What is the effect of Retinitis pigmentosa on mobility?

    <p>It affects mobility, especially in low light environments</p> Signup and view all the answers

    What is the result of Retinopathy of prematurity (ROP)?

    <p>Moderate to total visual damage</p> Signup and view all the answers

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