This cute little dog tangled with a cat and came away with a punctured eyeball. Fortunately antibiotics, pain relievers, and dilating the pupil worked to help things heal up. Many dogs get red eyes from allergies, dust, wind and other irritation. If a dog or cat holds its eye closed use eye wash, antihistamines, and aspirin(for dogs only) to sooth it, but you may need to get the eye checked out. Eyes can be very sensitive and damaged in a short time if there is injury, ulcer, glaucoma, or a foreign object in there.