Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Surgical removal of part of the iris of the eye.
from The Century Dictionary.
- noun In surgery, the operation of cutting out a part of the iris, as for the formation of an artificial pupil.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Surg.) The act or process of cutting out a portion of the iris in order to form an artificial pupil.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun surgery Removal of part or all of the
iris of theeye
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun an eye operation that treats closed-angle glaucoma by surgical removal of part of the iris of the eye
Etymologies
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Examples
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The difficulties of an iridectomy are especially pronounced in those cases in which the anterior chamber is extremely shallow and the iris is pressed against the cornea.
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Many operators still hold that an iridectomy is the most valuable of all operations for acute inflammatory glaucoma, and not a few hold that the operation has a decided place in the treatment of simple glaucoma.
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It is in such cases that the success of the operation is increased by the addition of posterior sclerotomy and the intelligent use of miotics prior to the performance of the iridectomy.
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Dr. Wood has referred to several of the many substitutes for iridectomy that have been proposed, and it is unnecessary to enumerate them again or to attempt to point out their good or bad features.
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This is especially apt to be the case in chronic glaucoma where the iris is adherent to the cornea, and in efforts to free the filtration angle by an iridectomy the iris is torn off in front of the adhesion and the filtration angle is not opened.
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Although Lagrange advocated iridectomy in all cases in his first communication, he no longer judges the procedure to be necessary in all instances, reserving it for cases in which for any reason, such as hypertension, prolapse is to be feared.
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This being the case one cannot truthfully say that trephining alone can take the place of the old Graefe iridectomy.
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Late or secondary infection, not unknown following iridectomy, may follow the trephine operation, and already some fifteen or sixteen cases have been reported.
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Even then the permanent results of the iridectomy will be modified in proportion to the success secured in freeing the filtration angle and opening Schlemm's canal by thorough removal of the root of the iris.
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Elschnig and others that fistula forming operations eventually will be discarded in favor of iridectomy and cyclodialysis.
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