Question

A 6-year old white male presents with a mild left head turn. Wet retinoscopy reveals OD: +0.25 OS: +0.50 with best corrected acuities of 20/20 in each eye. Extraocular movements show limited adduction of the left eye in right gaze. It is also noted that the left eye retracts with a narrowing of the eyelid fissure. What is the most appropriate diagnosis for this patient?

-Duane type 3 OS
-Duane type 1 OS
-Brown syndrome OS
-Bilateral Brown Syndrome Duane type 2 OD
-Duane type 2 OS

Answer 1

The most appropriate diagnosis for this patient is Duane type 1 OS, a congenital eye movement disorder characterized by limited movement of the affected eye.

Step-by-step explanation:

The most appropriate diagnosis for this patient is Duane type 1 OS. Duane syndrome is a congenital eye movement disorder characterized by limited movement of the affected eye. In this case, the patient presents with a mild left head turn and limited adduction of the left eye in right gaze. These symptoms are consistent with Duane syndrome type 1, which involves limited abduction of the affected eye and can result in retraction of the eyelid fissure on the same side.