Lutein/zeaxanthin for glare protection
AssigneeDsm IP Assets B.V.
InventorsFelix BARKER, Regina Goralczyk, Wolfgang Schalch
Life of this patent
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Abstract
The invention relates to the improvement of visual performance, particularly of visual performance in the darkness, by administration of a colorant that is capable of being incorporated into eye tissue and/or causing yellowing of eye tissue, especially carotenoids, such as lutein and zeaxanthin.
Claims16
The use of a colorant that is capable of being incorporated into eye tissue and/or causing yellowing of eye tissue, in the manufacture of a composition for the improvement of visual performance in the darkness.
-27. (canceled)
A method of promoting recovery from the physiological effects of glare which comprises administering to a healthy person in need of such treatment an effective amount of a carotenoid in a daily dosage within the range of from about 0.1 mg per kg body weight to 1.0 mg per kg body weight, based on the total weight of the carotenoid devoid of any ester group,
- wherein the carotenoid is selected from the group consisting of:
- lutein, zeaxanthin, mesozeaxanthin, astaxanthin or esters thereof, or mixtures thereof;
- and
- wherein the esters thereof are selected from the group consisting of esters of acetic acid, propionic acid, palmitic acid, stearic acid, succinic acid, oleic acid, linoleic acid, docosahexaenoic acid, and arachidonic acid.
A method of reducing the physiological effects of glare which comprises administering to a healthy person in need of such treatment an effective amount of a carotenoid in a daily dosage within the range of from about 0.1 mg per kg body weight to 1.0 mg per kg body weight, based on the total weight of the carotenoid devoid of any ester group,
- wherein the carotenoid is selected from the group consisting of:
- lutein, zeaxanthin, mesozeaxanthin, astaxanthin or esters thereof, or mixtures thereof;
- and
- wherein the esters thereof are selected from the group consisting of esters of acetic acid, propionic acid, palmitic acid, stearic acid, succinic acid, oleic acid, linoleic acid, docosahexaenoic acid, and arachidonic acid.
Dependencies are inferred from the claim text.