Evaluation of weakness of ciliary zonule in primary angle closure diseases using ultrasound biomicroscopy

• Material Type: 博士論文
• Title: Evaluation of weakness of ciliary zonule in primary angle closure diseases using ultrasound biomicroscopy
• Author/Editor: 力石, 洋平
• Author Heading: 力石, 洋平
• Publication, Distribution, etc.: 琉球大学
• Publication Date: 2022-03-18
• Publication Date (W3CDTF): 2022-03-18
• Alternative Title: 超音波生体顕微鏡を用いた原発閉塞隅角病の毛様小帯脆弱の評価
• Degree grantor/type: 琉球大学
• Date Granted: 2022-03-18
• Date Granted (W3CDTF): 2022-03-18
• Dissertation Number: 甲第538号
• Degree Type: 博士(医学)
• Conferring No. (Dissertation): 甲第538号
• Text Language Code: eng
• Alias of Author: Chikaraishi, Yohei
• Subject Heading: zonular weakness; PACD; UBM; cataract surgery
• Target Audience: 一般
• Note (General): Purpose: To evaluate zonular weakness before cataract surgery in eyes with primary angle closure disease (PACD). Study design: Retrospective Methods: This study was conducted at the University of the Ryukyus, Okinawa, Japan. We analyzed data from 133 eyes in 106 consecutive patients with PACD who underwent cataract surgery. PACD included PACS (primary angle closure suspect), PAC (primary angle closure), and PACG (primary angle closure glaucoma). We compared 68 eyes with zonular weakness and 65 eyes without zonular weakness, as identified during surgery. We developed three new ultrasound biomicroscopy (UBM) parameters. The SS-CP and SS-LS parameters were defined as the vertical distance between the scleral spur (SS) and the ciliary process (CP) or the lens surface (LS), respectively. The CP-LS parameter was defined as the distance between the CP and the LS. Results: Of the 133 eyes, 18 (13.5%), 50 (37.6%), and 65 (48.9%) were diagnosed with PACS, PAC, and PACG, respectively. Of the 68 eyes with zonular weakness, 8 eyes needed sulcus fixation of the intra ocular lens (IOL) because of lens subluxation. CP-LS was longer in eyes that required sulcus fixation of the IOL than in those that did not require sulcus fixation of the IOL (P < 0.01). Conclusions: A longer distance between the CP and the edge of the lens surface (CP-LS) necessitated a more difficult cataract surgery and greater frequency of sulcus fixation of the IOL. UBM examination is useful for detecting zonular weakness before surgery in PACD eyes.
• Persistent ID (NDL): info:ndljp/pid/12314034; https://dl.ndl.go.jp/pid/12314034
• Collection: 障害者向け資料
• Collection (Materials For Handicapped People:1): テキストデータ
• Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文; https://dl.ndl.go.jp/collections/A00014
• Acquisition Basis: 博士論文（自動収集）
• Date Accepted (W3CDTF): 2022-08-08T06:02:54+09:00
• Format (IMT): application/pdf
• Access Restrictions: 国立国会図書館内限定公開
• Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
• Availability of remote photoduplication service: 可
• Periodical Title (URI): http://hdl.handle.net/20.500.12000/0002018033; https://u-ryukyu.repo.nii.ac.jp/records/2018033
• Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

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