Racemose haemangioma of the retina. Report of three cases with long term follow-up.

Racemose haegiomas of the retina are rare developmental anomalies. The basic lesion is an abnormal arterio-venous communication. Three new cases with long term follow-up are presented. In two of the cases the first symptom was loss of vision due to retinal and vitreous haemorrhage. In the third case gradual reduction of vision was due to vascular leakage into the macular area. The recent literature is reviewed and the association to midbrain haemangiomas discussed. The ophthalmological differential diagnosis, the prognosis and the present status in treatment is presented.