Eye syphilis is on the rise in the United States, health officials warn.
More than 200 people across 20 states were diagnosed with the sexually-transmitted disease in their eyes between 2014 and 2016, according to data from the Centers for Disease Control and Prevention.
Ocular syphilis, which can cause blindness and blurry vision, develops out of a syphilis infection in the spinal cord, which spreads to the eye.
While it was once rare but rates have been steadily climbing in America in recent years.
