DPT 6340 Visual System Dysfunction Part 2

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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?

All of the above Signup and view all the answers

What happens to the lens in presbyopia?

It becomes less flexible Signup and view all the answers

What is a factor that contributes to refractive errors?

All of the above Signup and view all the answers

What is Strabismus characterized by?

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

What is the most common form of Strabismus?

Esotropia Signup and view all the answers

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

Glasses, contacts, or lasik surgery Signup and view all the answers

What is the effect of wearing glasses on the eyes?

It has no effect on the degree and progress of myopia Signup and view all the answers

At what age should Strabismus be identified and treated?

Before age 2 Signup and view all the answers

What is one way to correct Strabismus?

Surgery Signup and view all the answers

What is the main symptom of Retinitis pigmentosa?

Night blindness Signup and view all the answers

What is a possible complication of untreated Strabismus?

Vision suppression Signup and view all the answers

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

High oxygen levels in preemies Signup and view all the answers

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

To improve recovery outcomes Signup and view all the answers

What is the effect of Retinitis pigmentosa on mobility?

It affects mobility, especially in low light environments Signup and view all the answers

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

Moderate to total visual damage Signup and view all the answers