Acute Sterile Canaliculitis: A Case Report and Review of the Literature.

A 53-year-old male developed secondary canaliculitis after undergoing nasolacrimal intubation with a silicone stent. Negative cultures, symptoms refractory to antibiotics, and rapid resolution after stent removal suggest an immune reaction as the mechanism of canaliculitis. This case raises awareness of noninfectious hypersensitivity or hypersensitivity-like reactions as a potential acute or subacute complication of nasolacrimal stenting.