Gedde SJ, et al. - In the Primary Tube Vs Trabeculectomy (PTVT) Study, the authors reported 1-year treatment outcomes. A higher surgical success rate was noted in trabeculectomy with mitomycin C (MMC) when compared to the tube shunt implantation after 1 year in the PTVT Study. Compared with tube shunt surgery, lower intraocular pressure (IOP) with use of fewer glaucoma medications was achieved after trabeculectomy with MMC during the first year of follow-up. A lower frequency of serious complications producing vision loss or requiring reoperation was noted after tube shunt surgery relative to trabeculectomy with MMC.