ATORIC SURFACES FOR MINIMIZING SECONDARY ASTIGMATISM IN CONTACT LENSES FOR ASTIGMATISM CORRECTION Russian patent published in 2019 - IPC A61F2/14 G02C7/04 

Abstract RU 2706376 C1

FIELD: medicine.

SUBSTANCE: group of inventions relates to ophthalmology. Ophthalmic lens can comprise an aspherical first surface and an atomic second surface located opposite the first surface and configured to be placed adjacent to the user's eye. Second surface may contain the first conic constant along the first meridian and the second conic constant along the second meridian. Ophthalmic lens can be configured to minimize spherical aberration along the first meridian and the second meridian.

EFFECT: use of this group of inventions provides improved and more stable characteristics of vision.

72 cl, 11 dwg

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RU 2 706 376 C1

Authors

Wooley, C. Benjamin

Chen, Minghan

Dates

2019-11-18Published

2018-08-28Filed