Glaucoma is a life-long progressive disease, and patients are living longer. Therefore, a long term full evaluation of the efficacy of intraoperative 5-FU and MMC needs to be performed to assess the true efficacy of MMC compared to 5-FU. We, therefore propose, a long-term prospective study of patients previously enrolled in the prospective study involving the evaluation of single intraoperative application of mitomycin C versus 5-fluorouracil in low to moderate risk glaucoma patients.