Duane's Retraction syndrome Type 2 is defined by which limitation?

• A. Limited abduction
• B. Limited adduction
• C. Limited abduction and adduction
• D. Normal

Answer: (B)

In Duane retraction syndrome, the pattern of eye movement limitation defines the type. The hallmark across all types is abnormal innervation of the horizontal recti leading to globe retraction on attempted adduction due to co-contraction of the medial and lateral rectus muscles.

For this type, the limited movement is in adduction while abduction remains relatively intact. That means the eye struggles to move inward toward the nose, but can move outward normally. This reflects the specific miswiring pattern that predominantly affects the adducting motion, with abduction preserved.

So the correct description is limited adduction. Limiting abduction describes the other type, limiting both directions describes another type, and normal movement would not fit this syndrome.