Clamidia is a common STD (sexually transmitted disease) caused by the bacterium, Chlamydia trachomatis. Chlamydia trachomatis is naturally found living only inside human cells and is by far the most common STD in people worldwide. A whopping estimated 2,291,000 civilians ages 14-39 are infected with Clamidia! Clamidia isn’t just a genital disease, but also can infect the human eye causing potential blindness. Clamidia infection of the eye is the most common cause of preventable blindness in the world to this day.