Duane's Retraction Syndrome in Siriraj Hospital

Thammanoon Surachatkumtonekul M.D.*
Dhaivadee Dulyajinda M.D.*
Suchada Songcharoen M.D.*
Sutha Neungniyom B.E. (Science)*
*Department of Ophthalmology, Faculty of Medicine, Siriraj Hospital, Mahidol University

ABSTRACT : The purpose of this study is to determine the incidence, type, indication and result of surgery of Duane's retraction syndrome in Siriraj Hospital. The authors retrospectively analyzed the records of patients in muscle clinic between March 1, 1985 to March 31, 1998. Thirty-one cases (0.75%) of Duane's retraction syndrome were diagnosed. Duane's retraction syndrome type I is the most common (80%). Cases are more common in females (1.2 : 1). Majority of cases are unilateral. Amblyopia is detected in 16.13% of all cases. Most of indications for corrective surgery is the angle of deviation exceeds 20 A (prism diopters) or there is abnormal head position. The satisfactory outcome is found in 58.33%. Even though Duane's retraction syndrome is a rare con dition but the precision of the diagnosis is essentially important in order to detect amblyopia and correct abnormal head position. Key words : Duane's retraction syndrome. co contraction. strabismus.

Thai J Ophthalmol 1998 ; January-June 12(1): 15-20.