AOC Clinical Procedures and Protocols 3

Question 1

In performing cycloplegic refraction in children, which agent provides the most complete cycloplegia with the longest duration?

Accepted Answer

Atropine 1%

Answer

Atropine 1% produces the most complete and longest-lasting cycloplegia, often used for children with high hyperopia or accommodative esotropia.

Question 2

During the measurement of fusional vergence amplitudes, a patient first reports blur at a certain prism value. This blur point represents the limit of which function?

Accepted Answer

Motor fusion

Answer

The blur point during fusional vergence testing indicates the limit of motor fusion before decompensation of the vergence system occurs.

Question 3

A Maddox rod placed before the right eye in a patient with orthophoria will cause the patient to see:

Accepted Answer

A red line through the fixation light

Answer

The Maddox rod converts a point source of light into a streak line perpendicular to the rod's cylinders, allowing dissociation and phoria measurement.

Question 4

The four-diopter prism base-out test is used to detect:

Accepted Answer

Central suppression scotoma

Answer

The 4Δ base-out test identifies a small central suppression scotoma by observing whether both eyes make the expected versional and fusional movements.

Question 5

When recording a strabismus measurement using the prism and alternate cover test, SC and CC notations refer to:

Accepted Answer

Without and with spectacle correction

Answer

SC (sine correctione) means without correction and CC (cum correctione) means with correction, used when documenting refraction's effect on the deviation.

(AOC) American Orthoptic Council Practice Test

(AOC) American Orthoptic Council Practice Test

AOC Clinical Procedures and Protocols 3