method for endovitreal choroidal melanoma resection WITH USE HIGH-FREQUENCE ELECTROWELDING BOLOGICQL TISSUES

摘要

A method for endovitreal choroidal melanoma resection of large size consists in the sclerectomy, vitrectomy, retinotomy, removing tumor tissue diode laser coagulation on the edge of retinotomy, replacement of perfluorodecaline with sterile air, tamponade of vitreal cavity with silicone oil. In addition, at tumor removal the electric welding of choroidal vessels is performed around the tumor with endovitreal monopolar probe (voltage 22 - 30 V, current - up to , frequency - 66 kHz, exposure - up to 1.0 sec) within healthy tissue, at the distance from the border of tumors 1 - .