METHOD FOR APPLYING SURGICAL REMOVAL AND PHOTODYNAMIC PROPHYLAXIS OF RECURRENT SUBRETINAL NEOVASCULAR MEMBRANES Russian patent published in 2005 - IPC

FIELD: medicine.

SUBSTANCE: method involves introducing 0.1-0.3 ml of photosensitizing gel preliminarily activated with laser radiation, after having removed neovascular membrane. The photosensitizing gel is based on a viscoelastic of hyaluronic acid containing khlorin, selected from group containing photolon, radachlorine or photoditazine in the amount of 0.1-2% by mass. The photosensitizing gel is in vitro activated with laser radiation having wavelength of 661-666 nm during 3-10 min with total radiation dose being equal to 100-600 J/cm². The gel is introduced immediately after being activated. To compress the retina, vitreous cavity is filled with perfluororganic compound or air to be further substituted with silicon oil. The operation is ended with placing sutures on sclerotomy and conjunctiva areas. Compounds like chealon, viscoate or hyatulon are used as viscoelastic based on hyaluronic acid. Perfluormetylcyclohexylperidin, perfluortributylamine or perfluorpolyester or like are used as the perfluororganic compound for filling vitreous cavity.

EFFECT: excluded recurrences of surgically removed neovascular membrane and development of proliferative retinopathy and retina detachment; retained vision function.

3 cl, 5 dwg