Comparison of Surgical Outcomes in Patients with Small Refractive Error and Intermittent Exotropia.

Yeo, Young Do; Lee, Se Youp

doi:2014.55.9.1361

J Korean Ophthalmol Soc > Volume 55(9); 2014 > Article

Original Article

Journal of the Korean Ophthalmological Society 2014;55(9):1361-1365.
DOI: https://doi.org/10.3341/jkos.2014.55.9.1361 Published online September 15, 2014.

Comparison of Surgical Outcomes in Patients with Small Refractive Error and Intermittent Exotropia.

Young Do Yeo, Se Youp Lee

Department of Ophthalmology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea. lsy3379@dsmc.or.kr

경도의 굴절이상을 가진 기본형 간헐외사시 환자에서 수술 후 결과비교

여영도⋅이세엽

Department of Ophthalmology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea

Abstract

PURPOSE
To identify differences in the refractive error of postoperative intermittent exotropia patients. METHODS: A total of 71 patients who had an average refractive error of 2 D and a follow-up of more than 6 months after unilateral recession-resection (R&R) for intermittent exotropia were included in this study. Patients were divided into 3 groups according to their refractive error: Group 1, < or =-1.0 D; Group 2, -1.0 D ~ +1.0 D; Group 3, > or =+1.0 D. The amounts of deviation 1 day after surgery and 6 months after surgery were evaluated. RESULTS: Out of the 71 total patients included in this study, group 1 included 20 patients, group 2 included 39, and group 3 included 12. The average refractive error in groups 1, 2, and 3 was -2.2 +/- 0.9 D, 0.0 +/- 0.4 D and +1.9 +/- 0.9 D, respectively. The angle of deviation 1 day after surgery was measured in the 3 groups; A result labeled '+' was considered to be exodeviation and a result labeled '-' was considered to be esodeviation. The angle of deviation results for groups 1, 2, and 3 one day after surgery were -6.7 +/- 6.0 PD, -7.5 +/- 5.8 PD and -7.3 +/- 5.9 PD (p = 0.937), respectively, and the results 6 months after surgery were +2.2 +/- 4.3 PD, +4.7 +/- 5.9 PD and +1.8 +/- 2.8 PD (p = 0.076), respectively. Among the 3 groups, no statistically significant difference was observed in postoperative angle of deviation after 6 months. CONCLUSIONS: In basic intermittent exotropia patients with an average refractive error of 2 D, the amount of refractive error makes no difference in strabismus surgical outcomes.

Key Words: Angle of deviation;Basic type;Intermittent exotropia;Refractive error