FIELD: medical devices, in particular, ophthalmology. SUBSTANCE: inner surface of each lens is flat and is located at angle with respect to axis of lens. Outer surface is spherical, its convexity is directed out from flat inner surface. Thickness of lenses on side directed to ear holder is less than thickness of side directed to nose rest. Total optical force of each lens is within range of (2.5+/-2) D +(0.75+/-0.5) D. EFFECT: increased functional capabilities. 4 cl, 3 dwg
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