[Results of a-scan echography investigating intraocular tumors (author's transl)]

63 patients suspicious of having intraocular tumors underwent ultrasonic investigations. An A-Scan Unit 7200 MA (Kretztechnik, Zipf/Austria) was used, standardized by the citrated-blood method recommended by Ossoinig. Out of the 63 eyes investigated 45 were enucleated and studied histologically. Here ultrasonic diagnosis of uveal melanoma could be prouved histologically in 14 cases. In 31 cases the ultrasonic method failed to give detailed information about type of tumorous tissue. Here histology revealed 22 melanomas of the uveal tract, 4 retinal dysplasias, 4 retinoblastomas and one case of Coats disease.