Objective: Compare the efficacy of new agents netarsudil 0.02% (NET) and latanoprostene bunod 0.024% (LB) ophthalmic solutions as adjuncts to traditional 4-class maximum medical therapy (MMT) in primary open angle glaucoma (POAG). Design: Single-centre retrospective cohort study using records from a university glaucoma clinic from 2017 to 2021 with follow-up at 30–90 days. Participants: Patients with POAG already taking 4-class MMT who either added NET (n = 24) or exchanged a currently prescribed prostaglandin analogue (PGA) for LB (n = 11) with no prior surgery except for selective laser trabeculoplasty or cataract extraction >1 year prior. Methods: Either addition of NET or exchange of PGA for LB and otherwise continuing MMT. Outcome measures were absolute intraocular pressure reduction (IOPR) in mm Hg, percent IOPR, and proportion of patients achieving >10% IOPR. Results: Data from 35 eyes in 35 patients were analyzed. Intraocular pressure reduction after adding NET was significantly greater than after exchanging a PGA for LB. Percent IOPR by NET also was significantly greater than after exchanging PGA for LB. The proportion of patients reaching therapeutic threshold after the addition of NET was significantly greater than after exchange of PGA for LB. Conclusions: In patients with POAG on MMT, addition of NET was associated with significantly greater magnitude of IOPR and a significantly greater proportion of patients reaching the >10% IOPR threshold compared with exchange of PGA for LB.
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