Optic neuropathy secondary to lymphoma.

Optic neuropathy secondary to lymphomatous infiltration of the optic nerve developed in a patient who was in complete remission from treatment of a non-Hodgkin's lymphoma. This is the first reported case of an isolated optic neuropathy occurring in a patient in clinical and laboratory remission of non-Hodgkin's lymphoma. Recognition that such a complication can occur is important in that prompt treatment may lead to reversal of visual loss, as it did in this patient.