[Traumatic optic neuropathy after fall with a bamboo stick].

Traumatic optic neuropathy (TON) is a rare and potentially vision-threatening condition caused by ocular or head trauma. The treatment of TON is controversial with no evidence-based guidelines. We describe a case of an eight-year-old boy, who lost his vision on the right eye after having had a trauma of his left lower eyelid when he fell with a bamboo stick. Vision loss was not detected until ten days after the accident, where there were no light perception and a relative afferent pupillary defect. We attributed the vision loss to TON and no treatment was given. Within months optic disc pallor developed.