FIELD: optics.
SUBSTANCE: invention relates to a delamination-resistant silicone-hydrogel contact lens comprising an insert which is embedded in a silicone-hydrogel matrix material. Insert is made of a cross-linked polymer material, characterized by a refraction index higher than that of the silicone-hydrogel matrix material by at least 0.07, and comprises a diffraction structure located on one of the front and rear curved surfaces of the insert to provide a diffraction force which contributes to the total optical power of the contact lens.
EFFECT: disclosed is a silicone hydrogel contact lens which is resistant to delamination.
18 cl, 5 tbl, 2 dwg
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