Sterile keratolysis following pars plana vitrectomy for retinal detachment

The risk of sterile keratolysis seems to increase with excessive laser or cryo-retinopexy, use of silicone oil and repeated procedures. The initial vitrectomy was a complex surgery in all cases and required a longer operating time. Ciliary nerve damage of neurotrophic origin may be the cause of sterile keratolysis, and controlled retinopexy sparing the long ciliary nerves and avoiding cryotherapy may reduce the risk. Controlled studies are needed to investigate the causality between vitreoretinal surgery and sterile keratolysis.