Double vision

If a Px presents with double vision that varies at different times of the day, this could be caused by?

Myasthenia gravis

Ischaemia

Cataract

Trauma

A px presents complaining of double vision. You ask more questions and find out that the images are unequal where one is clear and the other is a 'ghost'. What do you think this is?

Monocular DV

Binocular DV

DV caused by restriction of one of the EOMs can be caused by:

Cataracts

Thyroid orbitopathy

Myasthenia gravis

Stroke

How many CN3 nerve palsies are life threatening?

1/4

1/3

1/2

2/3

Out of the following, which is the most common cause of CN3 palsies?

Ischemia

Inflammation

Trauma

What is NOT a sign of partial CN3 palsy?

Strabismus

Ptosis

Englarged pupil

Eye down and out

Which is NOT a sign in an acquired unilateral CN4 palsy?

Head tilt away from the side of the palsy

Vertical fusional reserves >5PD

Hypertropia of 1 eye

Fundus extorsion on the affected side

What kind of double vision is MOST likely to be seen in an acquired bilateral CN4 palsy?

Torsional

Vertical

Oblique

Horizontal

In an acquired bilateral CN4 palsy, what kind of head tilt might you observe?

Head tilt away from the side of the palsy

Head tilt up

Head tilt down

Head tilt towards the side of the palsy

In which palsy would you observe >10 degrees of extorsion on double maddox rod?

Acquired unilateral CN4

Congenital unilateral CN4

Acquired bilateral CN4

In which palsy would you observe >5PD on vertical fusional reserves?

Acquired unilateral CN4

Congenital unilateral CN4

Acquired bilateral CN4

Compression is a common cause of CN6 palsies

True

False

CN6 palsies will have

Vertical DV

Horizontal DV

Torsional DV

Duane's syndrome (congenital CN6 palsy) will have double vision

True

False

A sign you may see in CN6 palsy is:

Decreased abduction of 1 eye with slow abducting saccades

Head tilt away from the side of the palsy

Fundus extorsion

Vertical fusional reserves <5 PD

Double vision

More Quizzes