机构：[1]Department of Ophthalmology and Visual Science, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China[2]State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China[3]Key Laboratory of Myopia, Ministry of Health, Fudan University, Shanghai 200031, China[4]Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai 200031, China[5]Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China研究所眼科研究所首都医科大学附属北京同仁医院首都医科大学附属同仁医院
BackgroundReports of congenital isolated medial rectus muscle abnormalities are relatively uncommon and are seldom seen. According to our clinical experience, some rare cases of abnormalities could not be detected by clinical examination and imaging before surgical treatment, which brought difficulties to diagnosis and surgery.Case presentationIn order to provide clinical guidance, we summarized 4 cases with congenital hypoplasia of the medial rectus muscle in our hospital recently. All the patients exhibited exotropia in the primary position. Only one patient (25.0%) exhibited clinically significant limitations of ocular movements. All the patients were identified with congenital hypoplasia of the medial rectus muscle during strabismus surgery; one patient also had hypoplasia of the lateral rectus muscle. However, abnormalities of the rectus muscles were not identified by MRI in three patients (75.0%). In terms of treatment, we enhanced the surgery amount in three patients. Good correction of exotropia was achieved in all patients.ConclusionsCongenital hypoplasia of the medial rectus muscle is extremely rare and some cases are difficult to be detected by clinical examination or imaging. Surgeons should be aware of this condition and should actively but cautiously adjust the surgical parameters based on the patients' intraoperative status.
基金：
Eye ENT Hospital; Fudan University [20180618]; National Natural Science Foundation of China [82271117, 81500752, 82020108006, 81730025]; Shanghai Science and Technology Innovation Action Plan [22ZR1410200]
第一作者机构：[1]Department of Ophthalmology and Visual Science, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China[2]State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China[3]Key Laboratory of Myopia, Ministry of Health, Fudan University, Shanghai 200031, China[4]Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai 200031, China
共同第一作者：
通讯作者：
通讯机构：[1]Department of Ophthalmology and Visual Science, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China[2]State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China[3]Key Laboratory of Myopia, Ministry of Health, Fudan University, Shanghai 200031, China[4]Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai 200031, China
推荐引用方式(GB/T 7714)：
Yiqing Yuan,Xiying Wang,Ling Ling,et al.Unexpected extraocular muscle hypoplasia during strabismus surgery: case series[J].BMC OPHTHALMOLOGY.2024,24(1):doi:10.1186/s12886-024-03787-x.
APA：
Yiqing Yuan,Xiying Wang,Ling Ling,Xiaobin Yu,Chao Jiang...&Chen Zhao.(2024).Unexpected extraocular muscle hypoplasia during strabismus surgery: case series.BMC OPHTHALMOLOGY,24,(1)
MLA：
Yiqing Yuan,et al."Unexpected extraocular muscle hypoplasia during strabismus surgery: case series".BMC OPHTHALMOLOGY 24..1(2024)
