Journal of the Korean Ophthalmological Society 1998;39(12):3045-3052.
Published online December 1, 1998.
Treatment for Convergence Excess Esotropia by Slanted Medial Rectus Muscle Recession.
Se Youp Lee
Department of Ophthalmlogy, College of Medicine, Keimyung University, DongSan Medical Center.
모임과다 내사시에서 근사착술을 이용한 내직근후전
이세엽(Se Youp Lee)
Abstract
To investigate whether the slanted medial rectus recession can correct excess esotropia at near without overcorrection at distance and reduce the distance-near deviation difference, we examined 11 convergence excess esotropia patients who had deviation at near exceeding distance esotropia by 15PD or more, and underwent this operation. They composed of 7 partially accommodative esotropia with high AC/A ratio and 4 nonaccommdodative convergence excess esotropia. The surgical procedure consisted of bilateral, symmetrical slanted recession of the medial rectus muscle. The amount of recession of the upper and lower margins were calculated so as to correct the esotropia with correction at distance, and near respectively. The preoperative mean near and distance deviation were 33.8PD and 15PD, and each decreased to 9.2PD and 4.3PD postoperatively. The preoperative mean distance-near deviation difference were 18.8PD, and decreased to 5.4PD postoperatively. The 3 patients decreased over 10PD in the distancenear deviation difference. In conclusion, the surgical procedure, as bilateral slanted medial rectus recession, can correct excess esotropia at near without overcorrection at distance and reduce the distance-near deviation difference. Therefore, the bilateral slanted medial rectus recession may be used as the method of surgical treatment in convergence excess esotropia.
Key Words: Convergence excess esotropia;Nonaccommodative convergence esotropia;Partially accommodative esotropia with high AC/A ratio;Slanted medial rectus recession


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