J Korean Ophthalmol Soc > Volume 53(9); 2012 > Article
Journal of the Korean Ophthalmological Society 2012;53(9):1324-1329.
DOI: https://doi.org/10.3341/jkos.2012.53.9.1324    Published online September 15, 2012.
Clinical Evaluation of Excyclotorsion in Patients with Primary Inferior Oblique Overaction.
Soon Young Cho, Se Youp Lee, Young Chun Lee
1Department of Ophthalmology and Visual Science, Uijeongbu St. Mary's Hospital, The Catholic University of Korea College of Medicine, Uijeongbu, Korea. yclee@cmcnu.or.kr
2Department of Ophthalmology, Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea.
일차하사근기능항진 환자에서 외회선의 임상적 평가
조순영1⋅이세엽2⋅이영춘1
Department of Ophthalmology and Visual Science, Uijeongbu St. Mary’s Hospital,
The Catholic University of Korea College of Medicine1, Uijeongbu, Korea
Department of Ophthalmology, Keimyung University Dongsan Medical Center, Keimyung University School of Medicine2, Daegu, Korea
Abstract
PURPOSE
To evaluate the amount of excyclotorsion according to degree of inferior oblique overaction (IOOA) in patients with primary IOOA. METHODS: Fifty-nine primary IOOA patients who underwent inferior oblique muscle surgery were evaluated. Visual acuity, ocular movement test, prism cover test, Bielschowsky head tilt test, fundus photograph and photographic examination for excyclotorsion were performed. The correlation analysis was performed for the excyclotorsion according to the amount of IOOA (Control group; IOOA < 1, Group 1; 1 < or = IOOA < 2, Group 2; 2 < or = IOOA < 3, Group 3; 3 < or = IOOA < 4, Group 4; IOOA = 4). RESULTS: Excyclotorsion was 7.37 +/- 2.36degrees in the Control group, 9.29 +/- 3.79degrees in Group 1, 10.04 +/- 4.39degrees in Group 2, 17.98 +/- 4.62degrees in Group 3, and 24.70 +/- 4.61degrees in Group 4. The amount of IOOA and excyclotorsion showed a positive correlation (Pearson's correlation coefficient r = 0.675). Asymmetric IOOA was observed in 35 patients (59.3%) and symmetric IOOA was observed in 24 patients (40.7%). Asymmetric IOOA combined with hypertropia was presented in 9 patients (37.5%) and symmetric IOOA combined with hypertropia was presented in 3 patients (8.6%). Therefore, patients with asymmetric IOOA have a higher incidence of vertical diplopia. The amounts of IOOA and excyclotorsion were greater in primary IOOA with esotropia than in subjects with exotropia (p = 0.001). CONCLUSIONS: The excyclotorsion was proportional to the amount of IOOA in Group 3 and Group 4. The aspect of excyclotorsion was widely distributed in Group 1 and Group 2 compared to that in the Control group.
Key Words: Excyclotorsion;Primary inferior oblique overaction


ABOUT
BROWSE ARTICLES
EDITORIAL POLICY
FOR CONTRIBUTORS
Editorial Office
SKY 1004 Building #701
50-1 Jungnim-ro, Jung-gu, Seoul 04508, Korea
Tel: +82-2-583-6520    Fax: +82-2-583-6521    E-mail: kos08@ophthalmology.org                

Copyright © 2022 by Korean Ophthalmological Society.

Developed in M2PI

Close layer
prev next