Healaflow Patch for the Treatment of Rhegmatogenous Retinal Detachment

To improve the success rates of pars plana vitrectomy(PPV) which is the most common surgical procedure for the repair of primary rhegmatogenous retinal detachment (RRD) and to avoid silicon oil tamponade and face-down position, all eyes enrolled into this clinical trail undergo 27G PPV combined with Healaflow patch and air tamponade which do not need face-down position in the postoperative period. Healaflow® (Anteis S.A., Plan Les Ouates, Switzerland) consists of over 97% water, sodium hyaluronic acid (22.5 mg/ml) of nonanimal origin cross-linked with BDDE (1.4-Butanediol diglycidyl ether), and phosphate- and NaCl-salts to maintain a physiological pH (7.0) and osmolarity (305 mOsm/kg). At the time of study enrollment, physical examinations, best-corrected visual acuity (BCVA), intraocular pressure(IOP) will be measured and fundoscopy, OCT, B-ultrasound will be performed. The patients are going to be followed up for at least 3 months, the main outcome measures are postoperative primary and final anatomic outcome, BCVA and complications.

Inclusion Criteria: - patients with primary RRD Exclusion Criteria: - proliferative vitreoretinopathy grade C or more, dialysis, retinoschisis, eyes with secondary RRD, significant corneal or lens opacity precluding vitrectomy, giant retinal tears, a follow-up period of less than 3 months, and visual loss from causes other than RRD