Purpose To evaluate the safety and efficacy of viscocanalostomy in lowering intra-ocular pressure(IOP). Method Seventy consecutive patients with medically uncontrolled glaucoma undergoing viscocanalostomy between July 97 and February 00 were studied prospectively. 21 eyes underwent Visco-canalostomy alone and 49 eyes had combined Visco-canalostomy, phacoemulsification and intra-ocular lens. The mean follow-up was 14.2 months. Results IOP was reduced from a mean of 24.9 mmHg (range 18-42) pre-op, on an average of 2.23 medications, to a mean of 16.2 mmHg on an average of 0.075 medications post-operatively at 11.1 months. 5 eyes required 1 topical medication to keep the IOP below 21 mmHg post-operatively. 4 of these 5 eyes had previous anterior segment surgery. The post-operative period was characterized by rapid visual recovery, lack of anterior chamber activity and a good stable IOP control .There were no cases of shallow /flat anterior chambers, wound leak or choroidal detachment. There was no visible drainage bleb in 51% of eyes and a diffuse low bleb was visible in 23% of eyes. High but thick walled blebs were visible in 21% and there were 2 cases (5%) of cystic blebs. There was no correlation between bleb morphology and IOP control. Conclusion Visco-canalostomy provides effective medium term control of raised IOP. Previous anterior segment surgery was identified as a factor for failure.