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 (D)</p> Signup and view all the answers

What happens to the lens in presbyopia?

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

What is a factor that contributes to refractive errors?

<p>All of the above (D)</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 (C)</p> Signup and view all the answers

What is the most common form of Strabismus?

<p>Esotropia (B)</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 (B)</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 (C)</p> Signup and view all the answers

At what age should Strabismus be identified and treated?

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

What is one way to correct Strabismus?

<p>Surgery (C)</p> Signup and view all the answers

What is the main symptom of Retinitis pigmentosa?

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

What is a possible complication of untreated Strabismus?

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

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

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

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

<p>To improve recovery outcomes (A)</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 (B)</p> Signup and view all the answers

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

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

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