Abstract
Retinal displacement following rhegmatogenous retinal detachment (RRD) repair is an important consideration when assessing the integrity of reattachment, with potential implications on functional outcomes. There are limited data comparing various surgical techniques. We conducted a review of retinal displacement following RRD repair through October 2021, finding 21 studies encompassing 1,258 unique eyes. Outcome measures included the frequency of retinal displacement, visual acuity, metamorphopsia, and displacement direction. A meta-analysis was performed with data reported as risk ratios (RR) or mean difference and 95% confidence intervals. Retinal displacement was found in 35 ± 20% of RRD repairs. Scleral buckle (SB) without tamponade had the lowest rate of retinal displacement, followed by pneumatic retinopexy (PnR) and finally pars plana vitrectomy (PPV) (RR in PPV vs SB: 9.60 [2.01–45.95], P = 0.005). Silicone oil may reduce risk of displacement following PPV compared to gas (RR in gas vs SO: 2.16 [1.22–3.83], P = 0.009), as may immediate face-down positioning for 2 hours. Retinal displacement following PPV occurred in the downward direction in 92 ± 14% of cases and does not appear to significantly impact visual acuity (0.05 [-0.21 to 0.31], P = 0.70), although it may increase distortion. SB, PnR, PPV with silicone oil, and immediate face-down positioning are likely associated with less retinal displacement. Additional prospective studies are required to increase the certainty of these findings.
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