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iridectomy : ウィキペディア英語版
iridectomy

An iridectomy, also known as a surgical iridectomy or correctomy, is the surgical removal of part of the iris.〔Cline D; Hofstetter HW; Griffin JR. ''Dictionary of Visual Science''. 4th ed. Butterworth-Heinemann, Boston 1997. ISBN 0-7506-9895-0〕〔(Surgery Encyclopedia - "Iridectomy." ) Encyclopedia of Surgery: A Guide for Patients and Caregivers. Retrieved May 20, 2006.〕 These procedures are most frequently performed in the treatment of closed-angle glaucoma and iris melanoma.〔
==Comparison with Nd:YAG laser iridotomy==
In acute angle-closure glaucoma cases, surgical iridectomy has been superseded by Nd:YAG laser iridotomy, because the laser procedure is much safer. Opening the globe for a surgical iridectomy in a patient with high intraocular pressure greatly increases the risk of suprachoroidal hemorrhage, with potential for associated expulsive hemorrhage. Nd:YAG laser iridotomy avoids such a catastrophe by laser created hole in the iris, which facilitates flow of aqueous humor from the posterior to the anterior chamber of the eye.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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