In a study into dry eye disease, Chinese and British researchers find ... mobile devices that had been designed by authors, named 'laughing face', at the start of each session." ...

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 ...

Laughter may be as effective as eye drops for people who suffer from dry eye disease, according to scientists in China and Britain, with the therapy offering a cheaper treatment for the condition.