Healthy Living/WellnessViagra active ingredient may impair vision: Study Australian researchers have found that sildenafil, the active ingredient of anti-impotence drug Viagra, may cause vision impairment in men. The side-effect affects men who carry a common mutation for eye disease.by Christian Bautista
Healthy Living/WellnessNine-year-old Texas kid makes bucket list of must-see things worldwide before going blindby Rhodi Lee
