Efficacy of two trabecular micro-bypass stents combined with topical travoprost in open-angle glaucoma not controlled on two preoperative medications: 3-year follow-up. - Chang DF; Donnenfeld ED; Katz LJ; Voskanyan L; Ahmed II; Samuelson TW; Giamporcaro JE; Hornbeak DM; Solomon KD (Clinical ophthalmology (Auckland, N.Z.), 2017)