Multi-tint colored ophthalmic lenses for the short-sighted
View Patent ↗The present invention relates to an ophthalmic lens, having, on its surface, a colorless or yellow, central first zone and at least one peripheral second zone, selectively transmitting visible light having a wavelength of less than 570 nm.
1. An ophthalmic lens, comprising, on its surface,
a first colorless or yellow-colored central zone, and
a second peripheral zone, selectively transmitting visible light having a wavelength of less than 570 nm,
wherein the peripheral zone is formed by a multitude of concentric annular zones, of different colors, each of the annular zones selectively transmitting visible light having a wavelength which is the shorter, the further the zone is from the central zone.
2. The ophthalmic lens according to claim 1 , which is a concave monofocal ophthalmic lens.
3. The ophthalmic lens according to claim 1 wherein the colorless or yellow-colored central zone is circular or oval in shape.
4. The ophthalmic lens according to claim 3 , wherein the colorless or yellow-colored central zone is centered on the optical centre of the lens.
5. The ophthalmic lens according to claim 3 , wherein the diameter or the largest dimension of the yellow-colored central zone is comprised between 5 and 35 mm.
6. The ophthalmic lens according to claim 1 wherein the peripheral zone exhibits, from its internal limit to its peripheral limit, the whole of the transmission spectrum of visible light of a wavelength comprised between 570 nm and 400 nm, the wavelength of the light transmitted progressively decreasing, preferably linearly, from the centre to the periphery of the zone.
7. Method for treating progressive myopia comprising the prescription, for a patient suffering from progressive myopia, of spectacles comprising at least one ophthalmic lens according to claim 1 .