[Macular neuroretinopathy]

The isolated presumably inflammatory involvement mostly acute and unilateral of the photoreceptor layer of the retina, in the macular region, has been described as clinical entity: macular neuroretinopathy. Three cases are presented. Its evolution, ophthalmoscopic appearance (cuneiform tear drop), negative angiofluorography, normal electroophthalmography, differentiates neuroretinopathy from cystoid edema (CME), retinoschisis, acute macular multifocal placoid pigmentepitheliopathy, pigmentepitheliitis, and "Multiple evanescent white dot syndrome" (MEWDS). Visual acuity is mildly decreased but its recovery is poor even after a long period of time. Secondarily the pigmentepithelium may be involved. MEWDS is characterised by a primary fruste involvement of the pigmentepithelial layer simultaneously with a secondary involvement of the choriocapillaris, and possibly photoreceptor layer.