iridotomy


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iridotomy

 [ir″ĭ-dot´ah-me]
incision of the iris.

ir·i·dot·o·my

(ir'i-dot'ŏ-mē),
Transverse division of some of the fibers of the iris, forming an artificial pupil.
[irido- + G. tomē, incision]

iridotomy

/iri·dot·o·my/ (-ah-me) incision of the iris.

iridotomy

(ĭr′ĭ-dŏt′ə-mē, ī′rĭ-)
n.
Surgical incision of the iris to form an artificial pupil.

iridotomy

[ī′ridot′əmē]
Etymology: Gk, iris + temnein, to cut
a surgical incision into the iris of the eye. It is performed to relieve occlusion of the pupil, to enlarge the pupil in cataract extraction, or to treat postoperative glaucoma. Topical anesthetic drops are used. An incision is made through the cornea, and a cut is made transversely across the sphincter fibers of the iris. Atropine and an antibiotic may be instilled, and a dressing and shield are applied. After surgery the dressing is observed for signs of drainage. Excessive pain is abnormal. See also iridectomy, iris.

ir·i·dot·o·my

(ir'i-dot'ŏ-mē)
1. Transverse division of some of the fibers of the iris, forming an artificial pupil.
2. Creating a hole in the iris to prevent or treat angle closure glaucoma.
[irido- + G. tomē, incision]

iridotomy

A cutting into the iris.

iridotomy

Creation of an opening in the iris to allow aqueous humour to flow from the posterior to the anterior chamber. It is commonly performed with a neodymium-yag or argon laser (laser iridotomy) in angle-closure glaucoma, especially that caused by pupillary block. See iridectomy; pupillary block.

iridotomy

incision of the iris.
References in periodicals archive ?
Lensectomy is still the first choice if medical therapy and laser iridotomy fail.
Laser iridotomy is definitive if the eye is otherwise normal and the angle not occludable by other mechanisms other than pupillary block.
Sometimes a surgical peripheral iridectomy must be performed if the iridotomy is too small and not functioning.
The laser iridotomy site was examined for the patency by retro-illumination and direct visualization of the structures in the posterior pole.
As the mechanism of angle closure does not involve pupillary block peripheral iridotomy is ineffective in these cases.
Randomized trial of early phacoemulsification versus peripheral iridotomy to prevent intraocular pressure rise after acute primary angle closure.
In patients with narrow angle or angle closure glaucoma post trauma, laser peripheral iridotomy can be done.
Opening up the eyes with laser iridotomy will correct the condition.
Laser applications on iris for the treatment of glaucoma include laser iridotomy (LI) and laser peripheral iridoplasty (LPI).