Combined versus Sequential Pars Plana Vitrectomy and Phacoemulsification for Macular Hole and Epiretinal Membrane

Comparing the efficacy and safety between combined and sequential pars plana vitrectomy and phacoemulsification for macular hole (MH) and epiretinal membrane (ERM).The standard of care for MH and ERM is vitrectomy, which increases the risk of developing cataract. Combined phacovitrectomy eliminates the need for a second surgery.Ovid MEDLINE, EMBASE, and Cochrane CENTRAL were searched in May 2022 for all articles comparing combined versus sequential phacovitrectomy for MH and ERM. The primary outcome was mean best-corrected visual acuity (BCVA) at 12 months follow-up. Meta-analysis was conducted using a random effects model. Risk of bias (RoB) was assessed using the Cochrane RoB 2 tool for randomized controlled trials (RCTs) and Risk of Bias in Nonrandomized Studies of Interventions tool for observational studies (PROSPERO, registration number, CRD42021257452).Of the 6470 studies found, 2 RCTs and 8 nonrandomized retrospective comparative studies were identified. Total eyes for combined and sequential groups were 435 and 420, respectively. Meta-analysis suggested no significant difference between combined and sequential surgery for 12-month BCVA (combined = 0.38 logarithm of the minimum angle of resolution [logMAR]; sequential = 0.36 logMAR; mean difference = + 0.02 logMAR; 95% confidence interval = -0.04 to 0.08; P = 0.51; I2 = 0%; n = 4 studies, 398 participants), as well as absolute refractive error (P = 0.76; I2 = 97%; n = 4 studies, 289 participants), risk of myopia (P = 0.15; I2 = 66%; n = 2 studies, 148 participants), MH nonclosure (P = 0.57; I2 = 48%; n = 4 studies, 321 participants), cystoid macular edema (P = 0.15; I2 = 0%; n = 6 studies, 526 participants), high-intraocular pressure (P = 0.09; I2 = 0%; n = 2 studies, 161 participants), posterior capsule opacification (P = 0.46; I2 = 0%; n = 2 studies, 161 participants), posterior capsule rupture (P = 0.41; I2 = 0%; n = 5 studies, 455 participants), and retinal detachment (P = 0.67; I2 = 0%; n = 6 studies, 545 participants).No significant difference was detected between combined and sequential surgeries for visual outcomes, refractive outcomes, or complications. Given that most studies were retrospective and contained a high RoB, future high-quality RCTs are warranted.Proprietary or commercial disclosure may be found after the references.