Ophthalmic lenses with dynamic optical properties for reducing development of myopia
AssigneeSightGlass Vision, Inc.
InventorsPeter Hones, Thomas W. Chalberg, Jr.
Life of this patent
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Abstract
An ophthalmic lens includes a first region corresponding to a first area of an optical surface of the ophthalmic lens and a second region corresponding to a second area of the optical surface of the ophthalmic lens different from the first area The second region has an optically-switchable component switchable between a first optical state and a second optical state different from the first optical state. In the first optical state the second region partially scatters or defocuses light incident on the second area.
Claims24
An ophthalmic lens, comprising:
- a first region corresponding to a first area of an optical surface of the ophthalmic lens;
- and
- a second region corresponding to a second area of the optical surface of the ophthalmic lens different from the first area, the second region comprising an optically-switchable component switchable between a first optical state and a second optical state different from the first optical state, wherein in the first optical state the second region partially scatters or defocuses light incident on the second area,
- wherein in the second optical state, the second region partially scatters light incident on the second area by an amount that is different than the first optical state.
An ophthalmic lens, comprising:
- a first region corresponding to a first area of an optical surface of the ophthalmic lens;
- and
- a second region corresponding to a second area of the optical surface of the ophthalmic lens different from the first area, the second region comprising an optically-switchable component switchable between a first optical state and a second optical state different from the first optical state, wherein in the first optical state the second region partially scatters or defocuses light incident on the second area,
- wherein the second area is switchable between different optical powers and the second area is switchable between a first optical power corresponding to an optical power of the first area and a second optical power in which the second area introduces a myopic defocus to light passing through the ophthalmic lens.
A method for reducing contrast of images formed in a person's peripheral vision, comprising:
- varying, using an optically-switchable material in an ophthalmic lens used by the person, an amount of scattering in an area of the lens,
- wherein the amount of scattering in the area of the ophthalmic lens reduces an image contrast by 40% or more and provides a visual acuity of 20/30 or better.
Dependencies are inferred from the claim text.