단안 상사근마비에서의 안구회선

• 영문명: Ocular Torsion in Unilateral Superior Oblique Palsy
• 발행기관: 대한안과학회
• 저자명: 나경선 이세엽 이영춘,Kyung Sun Na, M.D., Se Youp Lee, M.D., Young Chun Lee, M.D.
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume48,number10, 1388~1393쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2007.10.31

영문 초록

Purpose: We evaluated the concordance of laterality of the paretic eye and the torsional eye in unilateral superior oblique palsy showing an inferior oblique overaction. Methods: Thirty-nine patients diagnosed as having a unilateral superior oblique palsy were evaluated for visual acuity, refractive manifestation, ocular movement, prism cover test, and fundus photograph. Of these patients, 32 derived from congenital causes and 7 acquired the condition from trauma. An ocular movement exam was performed to check an inferior oblique overaction, and a fundus photograph was used to measure the ocular torsional amount. Inferior oblique myectomy or recession was performed along with horizontal strabismus surgery. Results: Objective extorsion was presented in paretic eyes of 29 patients (74.4%) and nonparetic eyes of 10 patients (25.6%). The congenital superior oblique palsy patients were divided into two groups by the concordance of laterality of paretic eyes and torsional eyes. In the concordance group of 22 patients, the torsional amount was decreased from +17.69to +7.98and inferior oblique overaction from +2.27to +0.25after an inferior oblique muscle weakening procedure. In the discordance group of 10 patients, torsional amount was decreased from +16.97to +8.73and inferior oblique overaction from +2.50to +0.21postoperatively. In acquired oblique palsy patients, all patients showed the concordance of laterality, and the torsional amount was decreased from +16.76to +8.80and inferior oblique overaction from +2.5to +0.21after inferior oblique weakening procedure. Conclusions: We found that the paretic eye and the torsional eye may not coincide in congenital superior oblique palsy but always coincide in acquired oblique palsy after trauma. After an inferior oblique muscle weakening procedure, ocular torsional amount of paretic or sound eye is decreased in every case.

키워드

Ocular torsion, Superior oblique palsy