雑誌文献を検索します。書籍を検索する際には「書籍検索」を選択してください。

検索

書誌情報 詳細検索 by 医中誌

Japanese

A case of secondary angle closure due to ciliary block with Soemmering ring Tomokatsu Ikemura 1 , Yosihiko Iida 1 , Kentaro Takagi 1 , Tomohiko Yanagida 1 , Nobuyuki Shoji 1 1Kitasato University Hospital Ophthalmology pp.244-248
Published Date 2023/2/15
DOI https://doi.org/10.11477/mf.1410214719
  • Abstract
  • Look Inside
  • Reference

Abstract Purpose:We report a case of ciliary block that was thought to be caused by a Soemmering ring formed by residual lens epithelial cells in the equatorial region of the lens capsule.

Case:An 85-year-old woman had undergone cataract surgery on both eyes more than 10 years ago. She had no intraoperative complications and her intraocular lens(IOL)was fixed intracapsularly. One week earlier, she had a shallow anterior chamber and elevated intraocular pressure in the right eye, on which laser iridotomy(LI)was performed. Although the irido-corneal angle opened up, the patient again developed a shallow anterior chamber and elevated intraocular pressure(IOP), and was referred to our hospital. The IOP in the right eye was 62 mmHg. We considered that the corner angle was obstructed by a ciliary block and performed vitrectomy on the same day. Intraoperatively, the eccentricity of the IOL was not apparent. After surgery, the anterior chamber was deep and the IOP decreased to 8 mmHg, but one week later, the IOP increased again to 34 mmHg, and a shallow anterior chamber and angle closure was observed. We thought that contact of a Soemmering ring with the back surface of the iris obstructed the passage of aqueous humor and increased posterior chamber pressure. After performing peripheral iridectomy(PI), the anterior chamber deepened, and the IOP decreased to 12 mmHg and stabilized.

Conclusion:In patients with a fragile ciliary zonule, the flow of aqueous humor behind the iris may be blocked by a Soemmering ring as well as anterior deviation of the IOL, even after a ciliary body block is removed by vitrectomy. A small LI may also cause obstruction due to a Soemmering ring, and a larger PI is necessary to maintain anterior-posterior auricular traffic.


Copyright © 2023, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

関連文献

もっと見る

文献を共有