Multiple evanescent white dot syndrome asociated with neuritis: a case report

Purpose Multiple evanescent white dot syndrome (MEWDS) is included in the “White dots syndroms” group. It is characterized for the presence of small, flat, multifocal, gray-white lesions ranging in size from 100-300 µm at external retina or as deep as the retinal pigment epithelium layer. These lesions are found outside the macula in the posterior pole and show a tipical angiography. This disease is self-limited and treatment is not needed. Methods CASE REPORT Results Case report: we report a case of a 28 years old woman with blurred vision in left eye (OS) of acute onset. On examination the best corrected visual acuity OS was 0.8, nor discromatopsy or afferent pupillary defect were present . Visual field was performed, with an enlargement of the blind spot in OS. The anterior segment was unremarkable on slit lamp examination of both eyes. Fundus examination of the left eye revealed multiple yellow white dots scattered around the posterior pole not extending beyond the major vascular arcade. One month latter, visual field was normal, and the white dots have disappeared. The patient have history of 3 anterior neuritis reported in our hospital, with a detailed and exhaustive neurological examination including magnetic resonance imaging, serological test, autoantibodies and spinal tap, with all results in normal limits. Conclusion MEWDS is a rare entity, of unknown etiology, in which a possible viral origin is postulated that would unleash an immune response. Association with neuritis is not reported. Our patient associates a MEWDS´s case and several of neuritis, what make us think about a common etiopathogenic origin.