Researchers say laughter therapy may be just as good as drops for treating dry eyes. Repeating “Hee hee hee, hah hah hah, cheese cheese cheese, cheek cheek cheek, hah hah hah hah hah hah” a number of times a day over an eight-week period might just reduce the symptoms of dry eyes, a study suggests. Laughter exercise has been trialled for a number of conditions, so international researchers wanted to assess whether it could help patients with dry eye disease. Dry eye disease is a common condition which occurs when tears are not able to give the eyes enough lubrication, leading to symptoms inclu…