The collaborative initial glaucoma treatment study Study design, methods, and baseline characteristics of enrolled patients

Objective The Collaborative Initial Glaucoma Treatment Study (CIGTS) is a randomized, controlled clinical trial designed to determine whether patients with newly diagnosed open-angle glaucoma (primary, pigmentary, or pseudoexfoliative) are better treated by initial treatment with medications or by immediate filtration surgery. Design Randomized, controlled clinical trial. Participants A total of 607 patients with open-angle glaucoma were...