Dark Chocolate Can Improve Contrast Sensitivity, Visual Acuity

Share this content:
Dark Chocolate Can Improve Contrast Sensitivity, Visual Acuity
Dark Chocolate Can Improve Contrast Sensitivity, Visual Acuity

FRIDAY, April 27, 2018 (HealthDay News) -- Compared with milk chocolate, consumption of dark chocolate is associated with higher contrast sensitivity and visual acuity within two hours, according to a study published online April 26 in JAMA Ophthalmology.

Jeff C. Rabin, O.D., Ph.D., from the University of the Incarnate Word Rosenberg School of Optometry in San Antonio, and colleagues compared the short-term effects of dark and milk chocolate consumption on visual acuity in a randomized study. Thirty participants without pathologic eye disease consumed dark and milk chocolate in separate sessions; outcomes were assessed in within-participant paired comparisons.

The researchers found that small-letter contrast sensitivity was significantly higher after consumption of dark versus milk chocolate (mean improvement, 0.15 logCS; 95 percent confidence interval, 0.08 to 0.22 logCS; P < 0.001). Slightly higher large-letter contrast sensitivity was seen after dark versus milk chocolate consumption (mean improvement, 0.05 logCS; 95 percent confidence interval, 0 to 0.1 logCS; P = 0.07). Visual acuity improved slightly more after consumption of dark versus milk chocolate (mean improvement, 0.04 logMAR; 95 percent confidence interval, 0.02 to 0.06 logMAR; P = 0.05). In composite scores combining results from all tests, there was significant improvement after consumption of dark versus milk chocolate (mean improvement, 0.2 log U; 95 percent confidence interval, 0.1 to 0.3 log U; P < 0.001).

"The duration of these effects and their influence in real-world performance await further testing," the authors write.

Abstract/Full Text

Share this content:

is free, fast, and customized just for you!




Already a member?

Sign In Now »

Trending Activities

All Professions

Drug Lookup

Browse drugs by: BrandGenericDisease

More in Home

FDA Permits Marketing of Brain Stimulation Device for OCD

FDA Permits Marketing of Brain Stimulation Device for ...

FDA previously approved transcranial magnetic stimulation for major depression, certain migraines

Comments Open on End of NIH Review for Gene Therapy Studies

Comments Open on End of NIH Review for ...

NIH oversight panel no longer plans to review all applications for gene therapy experiments

U.S. Measles Outbreak Hits 107 Cases in 21 States, D.C.

U.S. Measles Outbreak Hits 107 Cases in 21 ...

Outbreak on track to exceed last year's; most of the people who got measles weren't vaccinated

is free, fast, and customized just for you!




Already a member?

Sign In Now »