Georgia researchers are studying macular pigment.

People with more yellow pigment in their eye may be better able to see distant objects in hazy conditions, according to a new paper in Optometry and Vision Science. Increased macular pigment (MP) may help in filtering out "blue haze," thus making distant objects more visible, according to an experimental study by Laura M. Fletcher, MS, and colleagues of University of Georgia, Athens. The results suggest that people with high levels of yellow macular pigment may have some slight advantage in hazy and glare conditions.

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