FIELD: medical engineering.
SUBSTANCE: device has gradual magnification degree growth providing undesirable lens astigmatismus reduction and canal width grows with across intermediate and proximate vision zones when compared to traditional lenses. The result is achievable by combining two or more surfaces of gradual magnification degree growth. Their combination contributes to magnification when increasing lens diopter factor.
EFFECT: high lens quality.
26 cl, 5 dwg, 3 tbl
