Clinical Study of A-V Pattern Strabismus in Korea.

Chang, Woo Seok; Kim, Sook Young

doi:2008.49.12.1974

J Korean Ophthalmol Soc > Volume 49(12); 2008 > Article

Original Article

Journal of the Korean Ophthalmological Society 2008;49(12):1974-1980.
DOI: https://doi.org/10.3341/jkos.2008.49.12.1974 Published online December 15, 2008.

Clinical Study of A-V Pattern Strabismus in Korea.

Woo Seok Chang, Sook Young Kim

Department of Ophthalmology, College of Medicine, Catholic University of Daegu, Daegu, Korea. kimsy@cu.ac.kr

한국인 A-V형 사시의 임상적 고찰

장우석ㆍ김숙영

Department of Ophthalmology, College of Medicine, Catholic University of Daegu, Daegu, Korea

Abstract

PURPOSE
To assess the prevalence of A-V pattern strabismus and evaluate the clinical characteristics, surgical methods and outcomes. METHODS: Among 825 patients who underwent horizontal strabismus surgery, the records of patients with A-V pattern strabismus were reviewed retrospectively. The prevalence and clinical characteristics of patients with A-V pattern strabismus were assessed and the surgical methods and outcomes of A-V pattern strabismus were evaluated. RESULTS: Among 825 patients with horizontal strabismus surgery, 113 (13.7%) patients had A-V pattern. V exotropia was the most common (65.5%) and A esotropia was the least common (7.1%) pattern. A +1.9 inferior oblique overaction in 92.8% of the V-pattern patients and a +1.5 superior oblique overaction in 70.0% of the A pattern patients was found. Among the 113 patients, 64.6% patients underwent oblique muscle surgery and 35.4% patients underwent vertical transposition of horizontal muscle. Vertical incomitance was significantly reduced after surgery in all types of A-V pattern strabismus (p<0.05) with a surgical success rate of 96.5%. CONCLUSIONS: A 13.7% prevalence of A-V pattern in horizontal strabismus patients was found, with V exotropia being the most common. The vertical incomitance was successfully corrected after surgery.

Key Words: A-V pattern;A esotropia;A exotropia;V esotropia;V exotropia