FIELD: medicine.
SUBSTANCE: set of soft contact lenses configured to be placed on the user's eye, comprising the following: soft contact lenses that provide overall spherical power correction ranging from a negative correction in diopters to a positive correction in diopters. Moreover, each of the contact lenses in the set contains a main part with an optical zone and a peripheral zone located adjacent to the optical zone. The optical zone contains a refractive structure, which has a first power of -3D for all contact lenses in the set; and for lenses with a total power other than -3D, provide a diffractive structure located adjacent to or within the optical zone, this diffractive structure having a second power and located at a distance of 2–6 mm from the center of the lens. The first power and the second power jointly provide an overall spherical correction of the power.
EFFECT: use of this invention will expand the range of technical means.
8 cl, 10 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD OF DESIGNING FRAMELESS PHOTOCHROMIC SOFT CONTACT LENSES | 2020 |
|
RU2824432C2 |
PHOTOCHROME SOFT CONTACT LENS WITH COSMETIC CONSIDERATIONS AND EFFICIENCY CONSIDERATIONS | 2020 |
|
RU2783105C1 |
CONSTRUCTION OF MULTI-AXIAL LENSES FOR ASTIGMATISM | 2013 |
|
RU2559176C2 |
PRESBYOPIA LENS WITH PUPIL SIZE CORRECTION BASED ON LEVEL OF REFRACTIVE ERROR | 2014 |
|
RU2568961C2 |
OPHTHALMOLOGICAL LENS WITH VARIABLE OPTICAL POWER | 2013 |
|
RU2557372C2 |
ATORIC SURFACES FOR MINIMIZING SECONDARY ASTIGMATISM IN CONTACT LENSES FOR ASTIGMATISM CORRECTION | 2018 |
|
RU2706376C1 |
PREPARATION OF LENSES WITH ELEMENTS FOR MANUFACTURING OF OPHTALMOLOGICAL LENS | 2013 |
|
RU2630103C2 |
METHODS AND DEVICE FOR FORMING THE VARIABLE MULTIFOCAL CONTACT LENS | 2013 |
|
RU2629903C2 |
METHOD AND DEVICE FOR OPHTHALMIC DEVICES WHICH INCLUDE CYCLOID-ORIENTED LIQUID CRYSTAL LAYERS | 2014 |
|
RU2605806C2 |
CONFIGURATION OF LENS NOT DEPENDING ON PUPIL DIMENSION, AND METHOD FOR MYOPIA PROGRESS PREVENTION AND/OR INHIBITION | 2015 |
|
RU2627640C2 |
Authors
Dates
2024-03-13—Published
2020-02-11—Filed