John Cena thought his itchy, red eyes were just something that came along with aging, but it turned out there was a different ...

Tick activity is on the rise nationally, including in the Midwest, as summer nears. What to know about the dangerous pests.

Cena was diagnosed with Demodex blepharitis, which he admittedly "didn't even know existed" ...

John Cena opens up about being diagnosed with a rare eye condition. Speaking to PEOPLE, the former Undisputed WWE Champion ...

Learn how to protect your eyes from chlorine-related irritation while enjoying swimming this summer with essential tips and ...

John Cena opens up about his overlooked eye disease and the diagnosis that changed his approach to health.

A Northern Territory athlete has described her experience of microsporidial keratoconjunctivitis following an outbreak among ...

University of Florida scientists are putting out a BOLO for the winged insects known to spread a deadly, heartbreaking parasite.

With tick season in full force, here are the most common diseases they spread in the U.S., where they most commonly occur and ...

Health authorities in Southwestern Ontario are warning vacationers to be wary and to protect themselves while camping and swimming this summer along Lake Erie's north shore after a tick collected in ...

The flesh-eating parasite, the New World screwworm, was detected this month in the Mexican state of Nuevo León, just 90 miles away from the U.S. border. As of last year, the insect was still 400 miles ...

Copious amounts of smelly, potentially harmful seaweed known as sargassum have washed up along the shores of South Florida.