Lutein & Zeaxanthin may improve visual performance in young people.
A study sponsored by DSM and Kemin demonstrated how FloraGLO lutein and OPTISHARP zeaxanthin supplementation could improve the ability to see under glare conditions. The randomized, double-blind and placebo-controlled study was published in Investigative Ophthalmology & Visual Science.
Conducted at the University of Georgia in Athens over the course of 12 months, the study indicated that regular intake of lutein and zeaxanthin can be beneficial for improving vision in young, healthy people.
In the GLARE2 study, approximately 100 young and healthy subjects were assessed and received daily dosage levels of 10 mg of FloraGLO lutein and 2 mg of OPTISHARP zeaxanthin, or a placebo over a one-year supplementation period. Macular pigment optical density (MPOD) and serum levels of lutein and zeaxanthin increased significantly in the supplemented group, while no changes were noted in the placebo group. The macula is the yellow spot in the central retina that is responsible for detailed central vision and the yellow color is the result of high concentrations of lutein and zeaxanthin. Macular pigment optical density is a measure of the amount of macular pigment present in the macula and has been shown to have a major impact on visual performance.
The study looked at three aspects of visual performance: glare disability, photostress recovery time and contrast enhancement. Glare disability is the amount of glaring light that can be tolerated by a person before vision is severely impaired. A good example of this is when a person is driving a car and encounters glare from the sun that shines directly through the windshield. Photostress recovery time determines how fast the eye can recover sight after experiencing a flash of bright light. Contrast enhancement is the ability to detect chromatic borders that allow discrimination of an object from its colored surroundings, which is important in sport activities. The results of this study demonstrated significant improvement in these aspects of visual performance and add to the growing body of evidence to support the role of lutein and zeaxanthin in helping to achieve optimal visual performance and comfort.
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|Title Annotation:||Suppliers Corner|
|Article Type:||Clinical report|
|Date:||May 1, 2015|
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