FIELD: OPHTHALMOLOGY. SUBSTANCE: invention relates to refraction surgery and consists in that, first, partial keratectomy with stem is performed and then ring-like implant with convex upper surface is laid intrastromally. Thickness of the ring in its center is 0.15-0.3 mm. Ratio of maximal diameters of outer and inner rings to minimal ones ranges from 0.15 to 1.05. Cornea flap is brought into its original position. EFFECT: increased refraction. 2 cl
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