Bilateral Medial Recti Recession in Infantile Esotropia.

Lee, Ji Eun; Roh, Young Bae

Original Article

Journal of the Korean Ophthalmological Society 1999;40(3):819-823.
Published online March 1, 1999.

Bilateral Medial Recti Recession in Infantile Esotropia.

Ji Eun Lee, Young Bae Roh

Department of Ophthalmology, College of Medicine, Pusan National University Hospital.

유아내사시에서 양안 내직근 후전

이지은(Ji Eun Lee),노영배(Young Bae Roh)

Abstract

Twenty-seven patients with congnital esotropia underwent bilateral medial recti recessions and were follwed up for 6 months or more. The relationship between the amount of bilateral medial rectus recession, the pre- and postoperative alignment was analyzed. The success of sugery was defined from the undercorrection less than 10 prism diopter(PD) to the overcorrection less than 5PD. Nineteen of 27 patients(70.3%) were successful. 3 patients(11.1%) were undercorrected and five(18.5%) were overcorrected. Three patients who showed overcorrection more than 20PD were recessed 7mm or more. The standard deviation of postoperative alignment was 2.2 in patients with preoperative alignment less than 50PD, and 17.4 in those with 50PD or more. The difference was significant(p<0.05). When preoperative alignment was 25 to 55PD and the amount of surgery was 4 to 7mm, there was high linear correlation between the amount of surgery and the corrected angle. However, close observation for consecutive exotropia will be necessary when preoperative alignment is more than 50PD and the amount of recession is more than 7mm.

Key Words: Consecutive;Infantile esotropia;Medial rectus recession