Cytomegalovirus infection in a healthy adult associated with recurrent branch retinal artery occlusion.

The authors report a 16-year-old healthy male who developed branch retinal artery occlusions sequentially in both eyes. A few vitreous cells and retinal vasculitis were associated findings. A complete work-up of the patient for an etiology for the occlusions failed to show any possible embolic source. Spinal fluid studies showed increased protein content and lymphocytic pleocytosis. Serologic studies showed a tenfold rise in the cytomegalovirus (CMV) titer. Other viral titers did not rise. CMV could not be cultured from the patient's body. The case represents a possible cause of the so-called idiopathic recurrent branch retinal artery occlusion syndrome.