[Monkeypox: Important facts for the ophthalmologist]

The current monkeypox virus (MPXV) outbreak, raging since May 2022, is the largest ever observed on a world-wide scale. Despite previously being endemic in west and central Africa with a mortality rate of up to 10%, it remained a neglected tropical disease. Along with other recent pandemics gaining much attention, this MPXV outbreak has provided an opportunity to improve our understanding of its physiopathology and better define management strategies, particularly in patients with more serious disease. From the ophthalmologist's perspective, eyelid involvement and conjunctivitis or keratoconjunctivitis are frequently observed and may precede systemic signs or even remain the major site of involvement. While the course of MPXV keratoconjunctivitis is most often favorable, severe cases pose a functional threat, in particular for immunocompromised patients. This review provides an overview of MPXV pathophysiology, diagnosis and treatment, as well as considerations for prevention of transmission. During such an epidemic, the ophthalmologist can be the first to diagnose MPXV, treat the ocular involvement, and set up adequate preventative measures in collaboration with infectious disease specialists.