Granted Patent B2

US 12,468,175 · App. 18/425,813 · Granted Nov 11, 2025

Inventors: Peter Hones (Menlo Park, CA); Thomas W. Chalberg, Jr. (Menlo Park, CA)

Assignee: SightGlass Vision, Inc.

G02C7/021G02C7/027G02C7/061G02C7/10G02C7/165A61B3/1173G02C2202/24

Abstract

Claims (32)

1 . An ophthalmic lens, comprising:

a lens material having a curved surface; and

a plurality of scattering centers sized and shaped to scatter incident light, the scattering centers being arranged in an area of the surface a pattern such that each scattering center is located at or near a corresponding array site of a two-dimensional array in which the spacing between array sites is a first distance, D x , in one direction in a plane of the array and a second distance, D y , in a second direction in the plane of the array, the second direction being orthogonal to the first direction,

wherein a center of each scattering center is displaced from a corresponding array site by an amount δx in the first direction and by an amount δy in the second direction, where

δ x=A x ·D x ·RN[ 0,1], and

δ y=A y ·D y ·RN[ 0,1],

wherein A x and A y are amplitudes that are between 0 and 1 and RN is a random number between 0 and 1.

2 . The ophthalmic lens of claim 1 , wherein the plurality of scattering centers are arranged in a scattering region, and

wherein the plurality of scattering centers are sized and arranged to reduce an image contrast of an object viewed through the scattering region by at least 30% compared to an image contrast of the object viewed through a clear aperture of the ophthalmic lens.

3 . The ophthalmic lens of claim 1 , wherein each scattering center comprises a depression on the surface.

4 . The ophthalmic lens of claim 1 , wherein spacing between array sites is in a range from 0.2 mm to 1 mm.

5 . The ophthalmic lens of claim 4 , wherein the scattering centers have a maximum dimension in a plane of the array in a range from 0.08 mm to 0.5 mm.

6 . The ophthalmic lens of claim 1 , wherein at least some of the scattering centers have a dimension in the plane of the array that varies from the dimension of other of the scattering centers.

7 . The ophthalmic lens of claim 1 , wherein a variation of the dimension of the at least some scattering centers in the plane of the array is 0.5 times or less than a nominal value.

8 . The ophthalmic lens of claim 1 , further comprising a lens axis and a clear aperture on the surface free of the scattering centers, the lens axis intersecting the clear aperture.

9 . The ophthalmic lens of claim 1 , wherein the pattern includes irregular variations in scattering center size.

10 . The ophthalmic lens of claim 1 , wherein the scattering centers are substantially circular in shape in the plane of the array.

11 . The ophthalmic lens of claim 1 , wherein the scattering centers are sized and shaped to scatter incident light into a range of forward scattering angles between 3 degrees and 30 degrees.

12 . The ophthalmic lens of claim 1 , wherein the scattering centers are sized and shaped so that the area has a haze in a range from 10% to 50%.

13 . The ophthalmic lens of claim 1 , wherein the ophthalmic lens is one of a plano lens, a single vision lens, and a multivision lens.

14 . The ophthalmic lens of claim 1 , wherein the ophthalmic lens is one of an eyeglass lens and a contact lens.

15 . The ophthalmic lens of claim 1 , wherein the area is an annular area.

16 . Eyeglasses, comprising:

eyeglass frames; and

the ophthalmic lens of claim 1 mounted in the eyeglass frames, the area containing the scattering centers corresponding to a wearer's peripheral visual field.

17 . The eyeglasses of claim 16 , wherein:

the plurality of scattering centers are arranged in a scattering region;

the one or more ophthalmic lenses have optical power to correct a vision of a wearer to 20/20 or better through a clear aperture of the ophthalmic lens; and

for at least a portion of the peripheral vision of the wearer through the scattering region, the lenses correct the vision of the wearer to 20/25 or better.

18 . A method of treating eye-length related disorders, comprising:

identifying, in a patient, an eye-length related disorder; and

reducing a contrast of images in a periphery of vision of the patient by using the eyeglasses of claim 16 .

Assignments (1)

Continuity (6)

References Cited (336)