Wang B, et al. - Researchers compared the effectiveness and safety of pars plana glaucoma drainage device (PP GDD) with anterior chamber glaucoma drainage device (AC GDD) for the treatment of glaucoma. Three databases, including PubMed, EMBASE, and the Cochrane Library databases were comprehensively searched, selecting the relevant studies. They noted a similar efficacy of reduction of both PP GDD and AC GDD procedures in the IOP and number of medications. Moreover, the findings suggested comparability of both devices on the safety with a similar incidence of corneal failure and overall complications.