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Journal of Ophthalmology
Volume 2019, Article ID 5374628, 4 pages
https://doi.org/10.1155/2019/5374628
Research Article

Detailed Anatomy of the Lateral Rectus Muscle-Superior Rectus Muscle Band

1Department of Anatomy and Institute for Applied Anatomy, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
2Department of Ophthalmology and Visual Science, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea

Correspondence should be addressed to Sun Young Shin; rk.ca.cilohtac@nihseye

Received 11 January 2019; Accepted 9 June 2019; Published 10 July 2019

Academic Editor: Mário Monteiro

Copyright © 2019 Yong Seok Nam et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. To elucidate the detailed anatomy of the lateral rectus muscle-superior rectus muscle (LR-SR) band by cadaver eye investigation. Methods. In total, 48 eyes of 24 cadavers were observed macroscopically. The lateral rectus muscle (LRM) and superior rectus muscle (SRM) were dissected from their origins to their insertions under the dissecting microscope, and the location, width, length, and tensile strength of the LR-SR bands were measured. Results. The LR-SR band is the thick ligament interconnecting LRM pulleys with SRM pulleys. The LR-SR band was covered by the orbital part of the lacrimal gland superiorly, and the intermuscular septum between the LRM and SRM was shown anterior to the LR-SR band. The length of the attachment site between the LR-SR band and the SRM was less at 8.64 ± 1.52 mm (), its thickness was thinner at 0.74 ± 0.16 mm (), and its tensile strength was weaker at 7.64 ± 1.82 N () compared to the attachment site between the LR-SR band and the LRM. Conclusions. This study revealed the detailed anatomy of the LR-SR band and provided helpful information to understand heavy eye syndrome and sagging eye syndrome.