Ocular Motility Testing

Question 1

What examination distinguishes a constant tropia from an intermittent tropia?

A. The alternating cover test with prism
B. The cover – uncover test
C. The Krimsky test
D. The Hirschberg test

Answer 1

B. The cover– uncover test

Question 2

What is the best way to perform the Worth 4-Dot test on a child?

A. Tell the child there are four lights and ask, which colors they see.

B. Tell the child to alternately to close one eye and then the other

C. Ask which color the child sees

D. Give the child the flashlight before they put the glasses on

Answer 2

C. Ask which color the child sees

Question 3

Stereoacuity testing is indicated if a patient has

A. Retinitis
B. A phoria
C. A chalazion
D. Hyperplasia

Answer 3

B. A phoria

Question 4

Evaluating the range and symmetry of motion of both eyes together is known as

A. Ductions
B. Versions
C. Phorias
D. Tropias

Answer 4

B. Versions

Question 5

Which tool is a series of red cylinders to assess phoria?

A. Worth four-dot
B. Ishihara plates
C. Maddox rod
D. Marcus Gunn

Answer 5

C. Maddox rod

Question 6

Which test uses prisms to center the corneal reflex?

A. Hess
B. Worth four-dot
C. Hirschberg
D. Krimsky

Answer 6

D. Krimsky

Question 7

How many nerves innervate the six extra ocular muscles?

A. 1
B. 2
C. 3
D. 4

Answer 7

C. 3