It may be a good day for a cup of hot tea and not just because of the bitter cold, as Westwood One reports a new study suggests it may have an extra health benefit. People who drink hot tea daily may be less likely than others to develop glaucoma symptoms, U.S. researchers say. Compared to coffee, soft drink and iced tea drinkers, study participants who consumed a cup or more of hot caffeinated tea daily had 74 percent lower odds of having glaucoma, the study authors report in the British Journal of Ophthalmology. Glaucoma is the second leading cause of blindness worldwide, according to the World Health Organization, affecting an estimated 58 million people. That includes more than three million Americans, only half of whom are aware they have the disease, according to the Glaucoma Research Foundation.