Eye Infections

You can make a good guess about what's causing eye infections by looking to see if one of both eyes are infected.  If just one eye is swollen of has a green or yellow discharge, it's probably a result of an injury from a poke with a stick, a fight with another animal, or even an embedded grass seed.  If both eyes are infected, it's probably because of a virus.  Eye infections are easy to treat, but they can cause blindness if they aren't treated quickly and correctly.  See a veterinarian as soon as you notice symptoms.