We relate the case of a 15 years old girl who suffered a sudden and se
vere bilateral lowering of the eyesight, on the occasion of a dermatom
yositis. The evolution, over a year, showed a remission of the systema
tic appearances but there was a limited recovery of the eyesight. the
diffuse retinal lesions are the sign of a more extensive vascular prob
lem, found in ease of paediatric dermatomyositis.