PARS PLANA VITRECTOMY-SUPRACHOROIDAL VISCOPEXY FOR RHEGMATOGENOUS RETINAL DETACHMENT REPAIR.

Abstract

To report reattachment rate of pars plana vitrectomy-suprachoroidal viscopexy (VIT-SCVEXY) for rhegmatogenous retinal detachment repair. In addition, this study compares the anatomic reattachment rate and functional outcomes of VIT-SCVEXY versus pars plana vitrectomy with traditional scleral buckle (PPV-SB) at postoperative month 3 and final follow-up. A retrospective cohort study conducted at St. Michael's Hospital, Toronto, Canada, between 2023 and 2024. Consecutive cases of rhegmatogenous retinal detachment with inferior breaks were included, comparing outcomes between those who underwent VIT-SCVEXY (n = 12) versus PPV-SB (n = 12). Cases were matched for age, gender, lens status, retinal detachment characteristics, preoperative visual acuity, and follow-up duration. A suprachoroidal viscoelastic buckle was successfully created under the break(s) in 75.0% (9/12) of PPV-SCVEXY cases. The reattachment rate at 3 months in those with a successful suprachoroidal buckle was 100% (9/9), with a mean LogMAR best-corrected visual acuity of 0.75 ± 0.25 (Snellen 20/100). The reattachment rate for VIT-SCVEXY and PPV-SB cohorts at 3 months was 100% (12/12). At final follow-up, 88.8% (8/9) of patients who had PPV-SCVEXY remained attached, with an overall retinal reattachment rate of 91.6% (11/12) versus 100% (12/12) in the PPV-SB cohort, P = 1.0. Mean LogMAR VA was 0.7 ± 0.5 versus 0.7 ± 0.3 (Snellen 20/100), P = 0.9. Chemosis was observed in 25.0% (3/12) of VIT-SCVEXY cases, whereas no adverse events were recorded in PPV-SB cases. VIT-SCVEXY may be a less invasive alternative to PPV-SB with comparable anatomic and functional outcomes. However, further investigations are warranted.