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Longterm follow up results of iridotomy by neodymium yag versus argon laser


, : Longterm follow up results of iridotomy by neodymium yag versus argon laser. Rinsho Ganka 44(9): 1449-1452

We evaluated the longterm results of laser iridotomy in 76 eyes with primary angle-closure glaucoma. Iridotomy was performed with Q-switched Nd-YAG laser in 38 eyes and with argon laser in the other 38 eyes. We used the extent of peripheral anterior synechia (PAS), numerized medication score and intraocular pressure (IOP) levels as indicators of clinical features before and after laser iridotomy. Both groups showed matching features before treatment. Two years after laser iridotomy, IOP was controlled 84% in the Nd-YAG-treated group and in 81% in argon-treated group. The difference was not significant. The two groups were also statistically similar concerning the other two indicators. The findings indicate that iridotomy with Nd-YAG laser is equally effective for primary angle-closure glaucoma as that with argon laser 2 years after treatment.

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