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Abstract #10174 Published in IGR 6-1

Evaluation of contact versus non-contact diode laser cyclophotocoagulation for refractory glaucomas using similar energy settings

Agarwal HC; Gupta V; Sihota R
Clinical and Experimental Ophthalmology 2004; 32: 33-38


PURPOSE: To compare the efficacy of contact and non-contact techniques of diode transscleral cyclophotocoagulation (TSCPC) in patients with refractory glaucoma in a prospective randomized manner. METHODS: Sixty eyes with refractory glaucoma were randomly treated with either the contact or non-contact technique of diode TSCPC and followed up for a minimum of 12 months. A standard protocol of 1500 mW for 2 sec per spot, with 40 spots over the entire 360° circumference was followed for all eyes in both groups. RESULTS: The reduction of mean baseline intraocular pressure (IOP) from 44.5 ± 7.4 to 14.8 ± 1.8 mmHg with the contact mode was not significantly different from that in the non-contact mode of 41.9 ± 8.8 mmHg reduced to 14.5 ± 1.5 mmHg (p = 0.34). The probability of IOP survival (<22 mmHg) at 1 year using the Kaplan-Meier plot was better using the contact mode, although the results did not achieve statistical significance. However, the average repeat treatments per eye with the non-contact mode (1.6 ± 0.7) was significantly higher than with the contact method (1.2 ± 0.6; p < 0.05). CONCLUSION: Using an energy setting of 3 J per spot, both the contact and non-contact methods of laser delivery were found to be equally effective in lowering IOP in eyes with refractory glaucoma.

Dr. H.C. Agarwal, Dr Rajenda Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India


Classification:

12.11 Cyclodialysis (Part of: 12 Surgical treatment)



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