頁籤選單縮合
| 題 名 | Video Endoscopic Findings of the Retropupillary Space during the "Envelope" Technique--The Mechanism of Pseudophakic Accommodation=於「信封式」技術瞳孔後空間電視型內視鏡之所見--偽晶體調節之機制 |
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| 作 者 | 康孟喆; | 書刊名 | 中華民國眼科醫學會雜誌 |
| 卷 期 | 35:2 1996.06[民85.06] |
| 頁 次 | 頁42-46 |
| 分類號 | 416.744 |
| 關鍵詞 | 電視型內視鏡; 偽晶體調節; Video endoscope; Ciliary body; Accommodation; |
| 語 文 | 英文(English) |
| 中文摘要 | 本文之目的乃在於以電視型內視鏡於前後囊間白內障摘除術時,觀察睫 狀體及虹彩後方之變佔,嘗試闡述偽晶體的眼球可見到明顯調節作用之機制。 於實施之人次前後囊間白內障摘除術,於人工晶體置入囊袋之後,其內置照明及 錄影之內視鏡,經由角鞏膜之切口進入前房,並置於人工晶體之光學區上。如此 一來,當撞孔以縮撞劑收縮時,或於睫狀體外方之鞏膜輕壓時,即可觀察到睫狀 體之變仇。 結果於所有例子均有相同之所見;包括冠狀前區,睫狀冠,睫狀谷。當縮瞳或輕 壓時,睫狀冠變得明顯可見。 結論如下:收縮瞳孔或輕壓睫狀體,類比於睫狀肌之收縮,於晶囊之圓弧上產生 均勻之鬆弛力量,因此得以闡釋偽晶體調節之機制。 |
| 英文摘要 | The purpose of this study was to visualize the ciliary body and the posterior aspect of the iris during endocapsular cataract extraction by meansof videoendoscope, and to try and elucidate the mechanism involved inaccommodation of the pseudophakic eye. Eight consecutive endocapsular cataract extractions were performed.After the intraocular lens had been glided into the capsular bag, anendoscope, under endoillumination, was inserted through the corneo-scleralincision to rest upon the optic. This enabled visualization of any change inthe ciliary body, when the pupil was constricted by carbachol, or when thescleral overlying the ciliary body was indented. Identical videoendoscopic findings were noted in all cases, includingthe precoronary zone, ciliary crown and ciliary valley. When there waspupillary constriction or indentation, the ciliary crown became prominentlyvisible. Pupillary constriction and indentation both appear to simulate contractionof the ciliary body, so as to exert an even laxing force upon the arc of thelens capsule. As long as the intraocular lens remains inside the capsularbag, this laxing force upon the lens capsule elucidates the mechanism ofpseudophakic accommodation. |
本系統中英文摘要資訊取自各篇刊載內容。