Patients with intrabulbar and intraorbital tumours have been investigated b
y colour Doppler imaging. In the first group there were 20 patients with ma
lignant melanoma of the uvea and in the second group there were 19 patients
with cavernous hemangioma. The third group was a control group represented
by 20 healthy individuals. In the group of patients with uveal melanoma it
has been established that every patient, except one, has a blood flow insi
de of tumour tissue. Internal blood flow of intraorbital hemangioma was slo
wer than inside the melanoma and the resistance index was lower. Comparison
, of blood flow in all patients has shown that there is no statistically si
gnificant difference between ophthalmic artery, central retinal artery and
posterior ciliary arteries except in. maximal blood flow in central retinal
artery and posterior ciliary arteries.