Effect of Superior Oblique Tuck Surgery in the Patients with Unilateral Superior Oblique Palsy.

Moon, Hyung Suk; Seo, Seong Wook; Lee, Jong Heun

Original Article

Journal of the Korean Ophthalmological Society 2000;41(9):1968-1973.
Published online September 1, 2000.

Effect of Superior Oblique Tuck Surgery in the Patients with Unilateral Superior Oblique Palsy.

Hyung Suk Moon, Seong Wook Seo, Jong Heun Lee

¹Department of Ophthalmology, Massan Samsung Hospital.SungKyunKwan University School of Medicine, #50 Hapsung-2-dong, Hoiwon-ku, Masan, Kyeong Sang Nam Do, 630-522, Korea.
²Department of Ophthalmology, College of Medicine, Gyeongsang National University, Chinju, Korea.

단안 상사근 마비 환자에서 상사근 겹침 수술의 효과

서성욱(Seong Wook Seo),문형석(Hyung Suk Moon),이종흔(Jong Heun Lee)

Abstract

This study was conducted to assess the amount of superior oblique tuck surgery and the corrected amount of vertical strabismus and head tilt after superior oblique tuck surgery in patients with unilateral superior oblique palsy.Superior oblique tuck surgery was performed on 13 patients with unilateral superior oblique palsy, which corresponded to the second or the third type with hypertropia of 25 PD (prism diopters)or less of Knapp classification. The mean preoperative vertical deviation was 17.8 PD and the mean postoperative vertical deviation was 8.8 PD:the mean corrected amount of vertical deviation was 9.0 PD.Head tilt, which had been observed in 10 (77%)patients preoperatively, improved by over 5 degrees, head tilt in 5 (50%)of them postoperatively.The results suggest that superior oblique tuck surgery may as well be combined with ipsilat eral inferior oblique weakening or with ipsilateral or contralateral vertical rectus muscle surgery in unilateral superior oblique palsy patients with the amount of vertical deviation of 15 PD or more.

Key Words: Head tilt;Superior oblique tuck surgery;Unilateral superior oblique palsy