Journal of the Korean Ophthalmological Society 1993;34(8):788-792.
Published online August 1, 1992.
One Muscle Surgery on the Small Angle Esotropia.
Bong Leen Chang
Department of Ophthalmology, Seoul National University Hospital, Seoul, Korea.
소사시각 내사시에서 단일 외안근 수술
장봉린(Bong Leen Chang)
Twenty patients with small angle esotropia of 12 delta - 20 delta were treated with a unilateral medial rectus recession of 4.0 - 5.0 mm. Eighteen of the 20 patients(90%) showed 8 delta or less horizontal deviations after surgery. The average amount of angle corrected with 4.0 mm recession in 15 delta esotropia group was 15 delta that with 4.5 mm recesstion in 15 delta - 20 delta esotropia group was 14.8 delta and that with 4.5 - 5.0 mm recession in 20 delta esotropia group was 15.2 delta. The average amount of angle corrected with 4.0 mm, 4.5 mm, 5.0 mm recession were 12 delta, 15 delta and 14.6 delta respectively. The recession of one medial rectus muscle is a safe, predictable and simple procedure for the surgical treatmont of small angle esotropia.
Key Words: Medial rectus;Recession;Small angle esotropia;Unilateral medial rectus recession

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