FIELD: medicine.SUBSTANCE: invention refers to medicine, namely to ophthalmology, endocrinology and restorative medicine, and may be used to treat the patients with non-proliferative diabetic retinopathy. For this purpose, with underlying background individual antidiabetic therapy, endonasal electrophoresis with 0.1% Semax in a daily dose of 700 mcg is applied in a patient lying on his/her back. A bifurcated positive electrode is coated with cotton swabs each of which is moistened with 7 drops o...