Postoperative change in lateral rectus muscle insertion measured by anterior segment optical coherence tomography
- Authors
- Lee, Ju-yeun; Park, Kyung-ah; Lyu, Injeong; Oh, Sei-yeul
- Issue Date
- Nov-2017
- Publisher
- NATURE PUBLISHING GROUP
- Citation
- EYE, v.31, no.11, pp.1556 - 1561
- Indexed
- SCIE
SCOPUS
- Journal Title
- EYE
- Volume
- 31
- Number
- 11
- Start Page
- 1556
- End Page
- 1561
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/151185
- DOI
- 10.1038/eye.2017.89
- ISSN
- 0950-222X
- Abstract
- Aims: The aims of this study were to investigate the longitudinal change in lateral rectus (LR) muscle insertion after recession surgery, and to evaluate a relationship between insertion distance and postoperative amount of deviation. Methods: We recruited 31 patients who underwent primary LR recession surgery with normal anterior segment structures. An AS-OCT scan of the LR muscle was performed at every visit. Data on sex, age, degree of deviation (prism diopter), and spur-LR insertion distance using AS-OCT were collected at preoperatively and postoperative months 1, 3, and 6. Spur-LR insertion was defined as the shortest distance between the insertion of the LR muscle and the scleral spur was measured using the caliper function in the AS-OCT software. Results: The mean distance of spur-LR insertion measured with AS-OCT was 5.5±0.7 mm preoperatively, and 11.1±0.9 mm at 1 month, 11.5±0.8 mm at 3 months, and 11.0±0.7 mm at 6 months postoperatively. There were significant differences in spur-LR insertion between postoperative 1 and 3 months, and between 3 and 6 months (generalized estimating equation, all P<0.001). The overall spur-LR insertion measurement has a significantly negative correlation with postoperative amount of deviation (Pearson’s correlation, P=0.035, r=−0.218).
Conclusions: AS-OCT is a useful instrument for understanding postoperative changes in EOM after tissue swelling subsides.
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