Among many, one major danger is hypoxia, a lack of oxygen to the eye. Detailing how it may affect ... In severe cases, it can cause painful ulcers on the cornea. These ulcers heal slowly and ...

If you ever notice pesky dark strands that may resemble anything from a simple speck to a cobweb drifting across your vision, what you're probably seeing is what's known as an eye floater. Floaters ...