Macular Pigment and Glare Disability
| Status: | Archived |
|---|---|
| Conditions: | Healthy Studies |
| Therapuetic Areas: | Other |
| Healthy: | No |
| Age Range: | Any |
| Updated: | 7/1/2011 |
| Start Date: | May 2009 |
| End Date: | February 2011 |
Effects of Lutein and Zeaxanthin Upon MPOD and Its Effects Upon Glare Disability, Photostress Recovery, and Contrast Enhancement in Healthy Subjects: A Randomized, Double-blind Placebo-controlled Study
The purpose of this study is:
I. To measure MP optical density (MPOD) spatial profiles in two groups (experimental and
placebo) of 50 subjects each (N = 100), during an L + Z supplementation period of 12 months.
II. To test the hypothesis that increases in MP (via 12 mg daily L + Z supplementation) will
result in significantly improved visual performance under disability glare conditions.
III. To test the hypothesis that increases in MP (via 12 mg daily L + Z supplementation)
will result in significantly reduced photostress recovery times.
IV. To test the hypothesis that increases in MP (via 12 mg daily L + Z supplementation) will
result in improved contrast enhancement.
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