The Primary Tube Versus Trabeculectomy Study is a multicenter randomized clinical trial comparing the safety and efficacy of tube shunt surgery and trabeculectomy with mitomycin C in eyes without previous ocular surgery. Dr. Lori Provencher sits down with authors Dr. Sara J. Coulon and Dr. Steven J. Gedde to discuss the results of this trail from their Ophthalmology Glaucoma article, “Outcomes of Glaucoma Reoperations in the Primary Tube Versus Trabeculectomy Study.” Outcomes of Glaucoma Reoperations in the Primary Tube Versus Trabeculectomy Study. Coulon, Sara J.Gedde, Steven J. et al. Ophthalmology Glaucoma, Volume 6, Issue 4, 422 – 431.