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Known as a surgical iridectomy or corectomy.
Refers to is the surgical removal of part of the iris.
These procedures are most frequently performed in the treatment of closed-angle glaucoma and iris melanoma.
The procedure has been superseded by Nd:YAG laser iridotomy, because the laser procedure is much safer.
When opening the globe for a surgical iridectomy in a patient with high intraocular pressure greatly increases the risk of suprachoroidal hemorrhage, this is avoided by a laser created hole in the iris which facilitates flow of aqueous humor from the posterior to the anterior chamber of the eye.
The procedure is commonly indicated and performed for:
Cataract surgery in a glaucoma patient
Combined procedure for cataract and glaucoma
Acute closed-angle glaucoma
Posterior capsular tears with vitreous loss
Implantation of anterior chamber intraocular lens
Iris trauma
An antiphogistic iridectomy is the surgical removal of part of the iris to reduce intraocular pressure in inflammatory conditions of the eye.
A basal iridectomy is an iridectomy which includes the root of the iris.
An optical iridectomy is the surgical removal of part of the iris to enlarge the existing pupil, or to form an artificial pupil, when the natural pupil is ineffectual.
A peripheral iridectomy is the surgical removal of a portion of the iris in the region of its root, while leaving the pupillary margin and sphincter pupillae muscle intact.
A peripheral iridectomy is used in the treatment of glaucoma.
A preliminary iridectomy is the surgical removal of part of the iris preceding cataract extraction.
A sector iridectomy is the surgical removal of a complete radial section of the iris extending from the pupillary margin to the root of the iris.
A key-hole pupil is left by the removal of a wedge-shaped section of iris.
A stenopeic iridectomy is the surgical removal of a narrow slit or a minute portion of the iris, leaving the sphincter pupillae muscle intact.
A therapeutic iridectomy is the surgical removal of a portion of the iris for the cure or prevention of an ocular disease.