Toxic Posterior Segment Syndrome Presenting as Occlusive Retinal Vasculitis following Vitreoretinal Surgery.

Purpose: To report a rare retinal manifestation of toxic posterior segment syndrome following vitreoretinal surgery. Methods: In this case series, we report three cases of rhegmatogenous retinal detachment for which pars plana vitrectomy with silicone oil injection was done. All three patients developed an intense anterior chamber reaction along with occlusive vasculitis-like fundus picture. Results: The three patients were started on topical and systemic steroids, and there was a dramatic improvement in vision and clinical signs at postoperative week 1. Conclusion: Toxic posterior segment syndrome is a sight-threatening complication after vitreoretinal surgery, but responds well to topical and systemic steroids.