Contact lens and method for prevention of myopia progression
US9753309B2 · kind B2 · utility
2Cited by
0References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2014 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Dec 31, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/24
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of slowing the progression of myopia in a person, comprises applying to the eye of the person a contact lens or lenses to mold the surface of the cornea. On removal of the lens, the shape of the corneal surface includes a vision correction area for correcting the myopic vision of the person, and a myopic defocus area having a more positive power and located within the pupil area, to simultaneously present a controlled myopic defocus to the retina both when viewing in the distance and also when viewing at near, without the lens in place on the cornea. Contact lenses and their use are also claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.