Nystagmus Practice Questions

Question 1

Which of the following is true about multiple sclerosis except

Accepted Answer

Pendular nystagmus

Answer

Nystagmus on adducting eye

Answer

One and half syndrome

Answer

Nystagmus on abducting eye

Question 2

Difference between central and peripheral vertigo:

Accepted Answer

Tinnitus and deafness are often present in peripheral vertigo

Answer

Multidirectional nystagmus that changes with gaze direction is common in central vertigo

Answer

Nystagmus associated with central vertigo is unidirectional

Answer

Central is more severe than peripheral vertigo

Question 3

In a patient with right vestibular neuronitis, what will be the finding on the head impulse test?

Accepted Answer

Head turned to right, corrective saccade to the left

Answer

Head turned to left, corrective saccade to the right

Answer

Head turned to right, no corrective saccade

Answer

Head turned to left, no corrective saccade

Question 4

Which of the following investigations is not necessary for evaluating optic neuritis?

Accepted Answer

Ultrasonography B-scan

Answer

MRI of the head and orbit

Answer

Erythrocyte Sedimentation Rate (ESR)

Answer

Visual fields assessment

Question 5

What is true about optic nerve glioma?

Accepted Answer

Unilateral proptosis

Answer

Seen in old individuals

Answer

Painful proptosis

Answer

Can cause hematoma

Question 6

Waves present in electroretinogram are all EXCEPT:

Accepted Answer

d wave

Answer

a wave

Answer

b wave

Answer

c wave

Question 7

All of the following are features of a tonic pupil, EXCEPT?

Accepted Answer

It is caused by damage to the oculomotor nerve

Answer

Accommodative paresis is present

Answer

Cholinergic supersensitivity of the denervated muscle is present

Answer

Reaction to light is absent and the reaction to near reflex is very slow and tonic

Question 8

A patient presents with limitation of abduction of the right eye and horizontal diplopia. Which cranial nerve is most likely affected?

Accepted Answer

Abducens nerve

Answer

Optic nerve

Answer

Oculomotor nerve

Answer

Trochlear nerve

Question 9

Oculomotor nerve palsy is characterized by all of the following except?

Accepted Answer

Inability of lateral gaze

Answer

Ptosis

Answer

Paralysis of accommodation

Answer

Upward gaze not possible

Question 10

What is the procedure of choice for ptosis in Horner's syndrome?

Accepted Answer

Fasanella Servat procedure

Answer

Levator palpebrae superioris (LPS) resection

Answer

Bilateral sling

Answer

Unilateral sling

Nystagmus — MCQs

Nystagmus — MCQs

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