AOC AOC Binocular Vision and Strabismus

Question 1

Which term describes a manifest deviation of the eyes that is present without any occlusion?

Accepted Answer

Heterotropia

Answer

Heterophoria

Answer

Esophoria

Answer

Exophoria

Question 2

The Hirschberg test estimates angle of strabismus by observing the position of which structure?

Accepted Answer

Corneal light reflex

Answer

Iris edge

Answer

Pupil margin

Answer

Limbus

Question 3

In the cover-uncover test, movement of the uncovered eye upon covering the other eye indicates which condition?

Accepted Answer

Tropia

Answer

Phoria

Answer

Amblyopia

Answer

Nystagmus

Question 4

An esotropia where the angle is larger for near fixation than for distance is called which type?

Accepted Answer

Convergence excess esotropia

Answer

Basic esotropia

Answer

Divergence excess esotropia

Answer

Divergence insufficiency esotropia

Question 5

Which prism test measures the full magnitude of a strabismic deviation including the motor fusion component?

Accepted Answer

Prism cover test

Answer

Krimsky test

Answer

Maddox rod test

Answer

4-diopter prism test

Question 6

Amblyopia secondary to strabismus is caused primarily by which mechanism?

Accepted Answer

Cortical suppression of the deviating eye

Answer

Retinal degeneration

Answer

Optic nerve atrophy

Answer

Lens opacity