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Cycloablation reduces IOP after PK

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BIRMINGHAM, England — Contact diode cycloablation, also called cyclodiode, is effective in managing refractory glaucoma after penetrating keratoplasty, according to surgeons here.

Peter Shah, FRCOphth, and colleagues measured intraocular pressure (IOP) following cyclodiode in 28 eyes of 28 patients with refractory glaucoma after penetrating keratoplasty. IOP was reduced from a median of 33 mm Hg to a median of 15 mm Hg.

IOPs of 6 mm Hg to 21 mm Hg were achieved in 79% of patients. Sixteen patients required more than one treatment. Three patients required three treatments, and two patients required four treatments.

Visual acuity improved in three patients and remained the same in 17 patients. Of the 19 patients with originally clear grafts, three grafts developed opacification. The mean number of glaucoma medications before cyclodiode was 2.6, decreasing to 1.8 after treatment.

Results of the study are published in the November issue of Ophthalmology.