Drinking green tea may protect your eyes from glaucoma. HealthDay reports that tissues in the eye absorb protective antioxidants called catechins from green tea. Catachins are powerful natural compounds that include vitamin C, vitamin E, lutein, and zeaxanthin.

"Our results indicate that green tea consumption could benefit the eye against oxidative stress," researcher Chi Pui Pang said in a statement. Until now, researchers didn't know if the catechins could get from the digestive system to the eyes.

Pang's study found that the effects of a cup of tea last for up to 20 hours.


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