Invention relates to devices for photo-dynamic therapy of a living organism"s tissues comprising an optical light exposure system (I) containing at least one source of light (2) selected from a group including light sources of high power and big range of wavelength, single LEDs, LEDs in a matrix-arrangement, halogen light sources, laser diodes, laser light sources, a suspension supply system (II) and a system (III) for simultaneous delivery and irradiation of a suspension of a photosensitizer, whereas a central control system (1) is connected to suspension supply system (II) and to a control unit (3) of at least one source of light (2) of the optical light exposure system (I) and enables a simultaneous or a separate operation of both systems (I) and (II).
