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要約 目的:広隅角デジタル撮影装置であるRetCam®を用いた隅角検査の報告。対象と方法:手術のために入院した緑内障患者50名50眼を対象とした。Goldmann 2面隅角鏡とRetCam®で各4方向の隅角を撮影し,その結果を比較した。隅角の広さの判定にはScheieの分類を用いた。結果:隅角鏡とRetCam®で判定される隅角の広さは,Grade 0とIの広隅角では100%で一致し,隅角が狭くなるにつれ一致率が低下し,RetCam®によるほうが広く判定された。RetCam®による圧迫隅角検査は容易で,周辺虹彩前癒着の有無の判定が可能であった。結論:RetCam®で隅角の撮影記録ができた。RetCam®では撮影時に眼球が圧迫されやすく,狭隅角眼では隅角の広さの定量的評価が困難である。
Abstract. Background:RetCam® is a wide-field digitalized imaging system and is mainly used for fundus photography in infants and children. Purpose:To report the use of RetCam® for goniophotography in glaucomatous eyes. Cases and Method:This study was made on 50 eyes of 50 patients of glaucoma prior to surgery. Each eye received photography of the chamber angle in 4 quadrants using Goldmann two-mirror goniolens and RetCam® in sitting position. Results:There was a 100% agreement in the width of the angle between goniolens and RetCam® in eyes with narrow angle graded as 0 or Ⅰ by Scheie classification. The rate of agreement decreased in eyes with wider angle, as RetCam® tended to show a wider grading than goniolens. It was easy to perform depression gonioscopy with RetCam® and to identify peripheral goniosynechia. Conclusion:It was possible to perform goniophotography using RetCam®. Objective evaluation of the width of chamber angle was difficult when using RetCam® due to compression of the eyeglobe.
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