A dog can get a swollen eye for many reasons. The most common one is a bump to the head. Dogs are excitable animals and often run around or jump about without thinking. If your dog isn't bumping itself on an almost daily basis then you're incredibly lucky.
Other alternatives include things like a tick bite, it could be Entropion (an eyelid infection), it could be an allergy or it could be that an item - like a seed - has gotten stuck around or behind the eye after running in long grass. If it's large or there are many seeds it will cause irritation, swelling and the eye will weep a mucus-like liquid.
If the eye is swollen shut, or visibly raised to the point it's blatantly obvious, or even seeping at the same time as being raised, you should take it to a vet as soon as possible. This is especially the case with puppies; their development means they're less resilient.
Other alternatives include things like a tick bite, it could be Entropion (an eyelid infection), it could be an allergy or it could be that an item - like a seed - has gotten stuck around or behind the eye after running in long grass. If it's large or there are many seeds it will cause irritation, swelling and the eye will weep a mucus-like liquid.
- Is there anything I can do myself?
- What should I do if there's no improvement?
If the eye is swollen shut, or visibly raised to the point it's blatantly obvious, or even seeping at the same time as being raised, you should take it to a vet as soon as possible. This is especially the case with puppies; their development means they're less resilient.