Late Onset Macular Oedema in a Patient with Multiple Sclerosis Treated with Fingolimod.

Macular oedema is a rare complication of fingolimod treatment. It usually presents within 3-4 months, but occasionally presents later. It can resolve without treatment despite continuation of fingolimod treatment. Herein we report a case of very late onset macular oedema in a 49-year-old woman with multiple sclerosis treated with fingolimod for 7 years. The patient presented with blurred vision in both eyes with visual acuities of 20/32 in her right eye and 20/25 in her left eye. She had macular oedema, that without discontinuing fingolimod treatment, resolved after 1 month.