A new study claims that just drinking one cup of coffee a day can help stop your eyes from aging and your eyesight from diminishing.

It's all thanks to antioxidants, called chlorogenic acid (CLA), in coffee, say a team of Korean and U.S. researchers who conducted the joint study effort. The research, conducted on mice, shows that CLA appears to stop retinal degeneration.

The study is "important in understanding functional foods, that is, natural foods that provide beneficial health effects," said professor of food science and the study's senior author Chang Y. Lee. 

"Coffee is the most popular drink in the world, and we are understanding what benefit we can get from that," Lee said.

The news is the latest research on coffee drinking benefits. Recent studies claim it can help prevent Alzheimers as well as diabetes.

The research result, while promising, needs further examination, say researchers, as it's not yet clear if coffee drinking provides CLA directly to the retina. The Cornell University study was published in the Journal of Agricultural and Food Chemistry and published by the Korea Institute of Science and Technology funded the study.

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