Beta radiation for glaucoma surgery

Abstract

BACKGROUND: The outcome of glaucoma surgery can be affected by the rate at which the surgical wound heals. Beta radiation has been proposed as a rapid and simple treatment to slow down the healing response. OBJECTIVE: To assess the effectiveness of beta radiation during glaucoma surgery (trabeculectomy We included randomized controlled trials comparing trabeculectomy with beta radiation to trabeculectomy without beta radiation. DATA COLLECTION AND ANALYSIS: We collected data on surgical failure (intraocular pressure > 21 mmHg), intraocular pressure and adverse effects of glaucoma surgery. We pooled data using a fixed-effect model. MAIN RESULTS: We found four trials that randomized 551 people to trabeculectomy with beta irradiation versus trabeculectomy alone. Two trials were in Caucasian people (126 people), one trial in black African people (320 people) and one trial in Chinese people (105 people). People who had trabeculectomy with beta irradiation had a lower risk of surgical failure compared to people who had trabeculectomy alone (pooled risk ratio (RR) 0.23 (95% CI 0.14 to 0.40). Beta irradiation was associated with an increased risk of cataract (RR 2.89, 95% CI 1.39 to 6.0). AUTHORS' CONCLUSIONS: Trabeculectomy with beta irradiation has a lower risk of surgical failure compared to trabeculectomy alone. A trial of beta irradiation versus anti-metabolite is warranted.

The Glaucoma Guidelines of the Swedish Ophthalmological Society

“…Intraoperative radiation therapy, usually using strontium‐90, has been shown to enhance the reduction in IOP. Cataract is the main adverse effect (Kirwan et al. 2009).…”