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Beta radiation as an adjunct to low-risk trabeculectomy
R M Barnes1, J S Mora, S J Best
1Ophthalmology Department, Auckland Hospital, New Zealand. rachelb@voyager.co.nz
Purpose:
To assess a single dose of intraoperative beta radiation used to enhance the success rate of trabeculectomy in a population of low-risk glaucoma patients in whom antimetabolites might not be indicated.
Methods:
A prospective randomized trial of 65 eyes was designed, with 31 eyes receiving 750 rads of intraoperative beta radiation (group 1), and 34 eyes receiving no supplementation (group 2).
Results:
Mean follow-up time was 24 months. Mean postoperative intraocular pressure was 12.2 mmHg in group 1, and 13.7 mmHg in group 2 (P = 0.16). Mean decrease in intraocular pressure was 10.3 mmHg in group 1, and 9.3 mmHg in group 2 (P = 0.49). The two groups were not significantly different in terms of surgical complications.
Conclusion:
For this population of low-risk patients, there was no significant difference in outcome after applications of a single intraoperative dose of beta radiation.
