More than 360 million people around the world suffer from chronically red, scratchy or irritated eyes, a condition that can worsen with stress.

Laughing may be as effective as drops for treating dry eyes, according to a new study. Laughter should be the “go to” treatment for relieving symptoms of the common condition, say Chinese scientists.

Vocalising laughing terms with exaggerated facial expressions and squinted eyes four times a day can decrease eye discomfort. Know from the study here.