A rare case of Duane's retraction syndrome: Type 3 with exotropia and nystagmus

Abstract

Duane's retraction syndrome (DRS) is a well-known congenital ocular motility disorder. It has been described as the consequence of a congenital anomaly of the 6th cranial nerve nuclei with aberrant innervations by supply from the 3rd cranial nerve. The syndrome includes abduction deficiency, adduction deficiency, or a combination of the two. Compensatory head adaptation helps maintain binocular vision. The purpose of this study is to report a rare case of DRS with a probable inverse DRS (occurrence of both the forms together is a rare phenomenon) presenting to a secondary care institute in this hilly terrain and highlight the ocular findings.