METHOD OF TRANSPUPILLARY THERMOTHERAPY OF AMELANOTIC MELANOMA OF CHOROID Russian patent published in 2012 - IPC A61F9/08 A61N5/67 

FIELD: medicine.

SUBSTANCE: invention relates to field of medicine, namely to ophthalmology, and is intended for transpupillary thermotherapy of amelanotic melanoma of choroid of medium size. Transpupillary thermotherapy by infrared diode laser 810 nm is performed to tumour tissue temperature 50-60°C, irradiation power being selected depending on degree of tumour pigmentation and on its size in central zone. At the first stage of treatment laser with wavelength 561 nm is used to perform laser barrage around neoplasm with power parameters - 200 mW, exposure - 0.05 msec, coagulant diameter 300 mcm, coagulants being laid in tiled way with formation of coagulant strip of III degree, up to 1 mm wide. After that, coagulation of intra-tumour vessels is performed with parameters of radiation power 1200 mW, exposure 0.5 sec, spot diameter 1000 mcm, in tiled way for coagulant of II degree. The second stage is carried out after 2 weeks by laser 810 nm, power of radiation is selected depending on rate of manifestation of calorimetric signs of laser impact. Coagulants are applied by method of "daisy", starting with the edge of tumour, allowing their small overlay on each other, central the highest part of tumour being processed last.

EFFECT: method makes it possible to reduce the number of intra- and post-operative complications.