Myopia Control Lens and Related Methods
AssigneeCooperVision International Limited
InventorMartin WEBBER
Life of this patent
Estimating the term…
Abstract
An ophthalmic lens for myopia control. A first surface of the lens varies across the lens to form a first surface power map. A second surface of the lens varies across the lens to form a second surface power map. Each of the first and second surface power maps comprise a spiral. The spirals formed by the first and second surface power maps twist in opposing directions. Related methods are also described.
Claims17
An ophthalmic lens for controlling progression of myopia, the lens including a first surface, shaped to form a first surface power map, and a second surface, shaped to form a second surface power map, wherein:
- the first power map comprises a spiral;
- the second power map comprises a spiral;
- and
- the spirals provided by the first and second surface power maps twist in opposing directions.
A method of manufacturing an ophthalmic lens, the method comprising:
- operating a lathe to shape first and second surfaces of one of:
- a lens, a mould for a lens, or an insert for manufacturing a mould for a lens such that:
- the first surface forms a first surface power map;
- the second surface forms a second surface power map;
- the first surface power map and the second surface power map each comprise a spiral;
- and
- the spirals formed by the first surface map and the second surface power map twist in opposing directions.
Dependencies are inferred from the claim text.