Orthokeratology lens and method for making orthokeratology lenses
US11662606B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2018 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | Mar 28, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00951
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to an orthokeratology lens which may comprise an inner surface facing a cornea of a human eye when the orthokeratology lens is worn and an outer surface opposite the inner surface, the inner surface comprising a centrally located base are zone, wherein the base arc zone is configured for pressing and shaping an anterior surface of the cornea to have a shape that conforms to the base are zone, wherein the base arc zone comprises two or more regions, at least two of the two or more regions having different radii of curvature. The present disclosure also relates to a method for making orthokeratology lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.