Ophthalmic lenses with light scattering for treating myopia
AssigneeSightGlass Vision, Inc.
InventorsPeter Hones, Thomas W. Chalberg, JR.
Life of this patent
Estimating the term…
Abstract
An ophthalmic lens that includes a lens material having two opposing curved surfaces, the curved surfaces defining a lens axis; and a light scattering region surrounding a clear aperture. The clear aperture and the light scattering region are substantially centered on the lens axis, and the light scattering region has a plurality of spaced apart scattering centers (e.g., on a lens surface and/or embedded in the lens material) sized and shaped to scatter incident light, the scattering centers being arranged in a pattern that includes a random variation in spacing between adjacent dots and/or a random variation in dot size.
Claims27
(canceled)
A method, comprising:
- focusing a laser beam to a focal point;
- and
- exposing an ophthalmic lens to the focused laser beam to form optically scattering features in a pattern on a curved surface of the ophthalmic lens,
- wherein exposing the ophthalmic lens comprises causing relative motion between the laser beam and the lens so that different locations of the curved surface of the lens intersect the laser beam at different locations with respect to the focal point.
A method of forming scattering centers in an ophthalmic lens, comprising:
- exposing an area of the ophthalmic lens to laser radiation having a wavelength and power sufficient to cause a material forming the ophthalmic lens to become foam,
- wherein bubbles from the foam form scattering centers in the ophthalmic lens.
A method, comprising:
- simultaneously exposing an ophthalmic lens formed from a lens material to two or more beams of laser radiation such that the two or more beams overlap in a portion of the lens material, an intensity of the laser radiation in an overlapped portion of the two or more beams being sufficient to form an optically scattering feature in the lens material;
- and
- varying a location of the overlapped portion of the two or more in the lens to form a pattern of optically scattering features in the lens.
Dependencies are inferred from the claim text.