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ID 58557
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著者
Kono, Reika Department of Ophthalmology, Medical School, Okayama University ORCID Kaken ID publons researchmap
Ohtsuki, Hiroshi Division of Ophthalmology, Okayama Saiseikai General Hospital
Kishimoto, Fumiko Division of Ophthalmology, Ibara City Hospital
Hamasaki, Ichiro Department of Ophthalmology, Okayama University Hospital Kaken ID
Morizane, Yuki Department of Ophthalmology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences Kaken ID publons
Shiraga, Fumio Department of Ophthalmology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences Kaken ID researchmap
抄録
Purpose
This study aimed to investigate the characteristics of the extraocular muscles and the orbital connective tissue pulleys in Japanese patients with age-related distance esotropia (ARDE) and high myopia using magnetic resonance imaging (MRI).
Methods
This was a retrospective case-series study. High-resolution coronal MRI scans of 12 orbits were obtained in 6 patients with ARDE and high myopia (age range: 51–69 years). We analyzed the images to determine the positions of the rectus muscle pulleys relative to the center of the globe, the integrity of the lateral rectus-superior rectus muscle (LR-SR) band, and the LR angle (the angle between the major axis of the LR and the vertical plane).
Results
The distance esotropia ranged from 4 to 25∆, and 3 cases exhibited vertical deviations. The mean (±standard deviation (SD)) axial length was 28.5 (± 1.6) mm. The mean positions of the medial rectus muscle pulley and LR pulley were 1.3 mm inferior and 1.4 mm inferior, respectively, to those seen in the normal control group in our previous study (P = 0.002 and P = 0.05, respectively). All 12 orbits had abnormal elongated LR-SR bands, and 8 orbits (67%) displayed ruptured LR-SR bands. The LR angle (mean±SD; 18.8° ± 8.5°) increased significantly with the inferior displacement of the LR pulley (R2 = 0.77, P = 0.0002).
Conclusions
Inferior displacement of the LR pulley and abnormal LR-SR bands were seen in Japanese ARDE patients with high myopia, as was found in ARDE patients without high myopia. The LR angle might be useful for judging the degree of LR pulley displacement.
キーワード
age-related distance esotropia
esotropia
high myopia
orbital pulley
sagging eye syndrome
発行日
2019-01-22
出版物タイトル
Graefe's Archive for Clinical and Experimental Ophthalmology
257巻
出版者
Springer
開始ページ
662
終了ページ
662
ISSN
0721832X
NCID
AA11623893
資料タイプ
学術雑誌論文
言語
英語
OAI-PMH Set
岡山大学
論文のバージョン
author
PubMed ID
DOI
Web of Science KeyUT
関連URL
isVersionOf https://doi.org/10.1007/s00417-019-04250-0