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Abstract #9958 Published in IGR 5-3
Mid-term follow-up of Nd:YAG laser iridotomy in Asian eyes
Hsiao CH; Hsu CT; Shen SC; Chen HSLOphthalmic Surgery Lasers and Imaging 2003; 34: 291-298
BACKGROUND AND OBJECTIVE: To assess the long-term results of Nd:YAG laser iridotomy in the treatment of patients with primary angle-closure glaucoma and occludable angles to evaluate the risk-benefit ratio and the role of gonioscopy in predicting the outcome after Nd:YAG laser iridotomy. PATIENTS AND METHODS: The records of 138 consecutive patients (231 eyes) who underwent Nd:YAG laser iridotomy in one hospital over three years (1989-1991) were reviewed. The mean follow-up period was 51 months. RESULTS: Of all eyes, 25.1% were treated for chronic angle-closure glaucoma and 10.8% were treated for acute angle-closure glaucoma; most eyes (64.1%) underwent prophylactic iridotomy for occludable angles. Decreased intraocular pressure (IOP) was noted in most eyes after Nd:YAG laser iridotomy; only ten eyes required further filtration surgery. Visual acuity was unchanged or improved in 97.9% of all eyes at the six-month visit. Cataract progression was primarily responsible for those eyes with decreased acuity. Ninety-seven percent of eyes had quantitatively wider angles after laser treatment; eight of 14 eyes with peripheral anterior synechiae of more than 270° underwent further surgery to control IOP. Transient elevated IOP and iris bleeding occurred in 23.5 and 12.2% of the eyes, respectively; other complications were rare. CONCLUSIONS: Nd:YAG laser iridotomy is a safe and effective procedure for the treatment and prevention of angle-closure glaucoma. Gonioscopy is useful to predict the outcome after Nd:YAG laser iridotomy.
Dr. C.-H. Hsiao, Department of Ophthalmology, Chang-Gung Memorial Hospital, 199 Tung-Hwa North Road, Taipei, Taiwan
Classification:
12.2 Laser iridotomy (Part of: 12 Surgical treatment)
