Type of Surgery
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Last updated: 02/17/2009
Within four years of treatment, hypotony will occur in up to 12% of all patients who undergo CCT, but is seen in up to 40% of patients with neovascular glaucoma. Up to two-thirds of patients will lose some visual acuity after CCT; many of them will...
have vision worse than 20/400. About 20% of patients who have had cyclocryotherapy will develop cataracts.
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Cyclocryotherapy (CCT) is a procedure that employs temperatures as low as -112°F (-80°C) to destroy the ciliary body, an organ in the anterior chamber of the eye behind the iris, which produces aqueous fluid. A certain amount of fluid is required to maintain the integrity of the eye, but an increase in intraocular fluid leads to an elevation in intraocular pressure (IOP); elevated IOP is a major cause of glaucoma. Ablation, or destruction, of part of the ciliary body lowers the IOP by decreasing the fluid or aqueous humor within the eye and thus helping to control glaucoma. The main purpose of CCT is to treat uncontrolled or refractory glaucoma. It is also used to reduce ocular pain in some patients with end-stage glaucoma.
From http://www.enotes.com/surgery-encyclopedia/cyclocryotherapy
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Surgeons aim for results of 20/20 or better so that you can perform most daily activities without your glasses. However, there is a possibility that after surgery, you may need to wear reading glasses or corrective lenses for at least some activities.
-Eye Surgery Education Council
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