The mean preoperative IOP was 34.4 ± 9.6 mm Hg. Four months after the first UCP treatment, the overall IOP reduction was 27.9%. Fifteen of the treated eyes did not achieve the complete success and a second treatment was performed.
Four months after the second UCP procedure took place, IOP declined by 21.9 % from preoperative values and by 34.6% from baseline. Complete success was not achieved in nine of the retreated eyes and, therefore, a third treatment was performed.
Four months after the third UCP treatment, the overall IOP reduction was 36.5% and 52.2% from baseline. At 12 months, complete success was achieved in 80% (24/30) of treated eyes that had undergone the maximum of three procedures, and there was a significant reduction of hypotensive medications.
No major complications occurred during and after any of the procedures.