My dog's eye is suddenly red, swollen, and leaking. Is it serious?

Hello, poor Cooper that looks painful!!! He has quite a bit of red around his scleral and the conjunctiva of the lower eye lid appears to have a hematoma (bleeding) or chemosis (swelling). I looks as though he may have bumped his eye into something. However, some of these signs can also occur with an eye infection, corneal ulcer, or foreign body.

Cooper will likely need at least some pain medications to keep him comfortable while the swelling goes down. He may also need to have his eye stained to check for an ulcer and eye ointments to treat for an eye infection.

It would be best to have a veterinarian examine his eye sooner than later. Deep ulcers can progress quite quickly without medical management. Any ulcer or foreign body can be quite painful.

If you think however, Cooper is comfortable and isn't showing any signs of pain (squinting, rubbing eye, or being lethargic) then you may monitor the redness at home to see if this gets better.

Hope this helps and best of luck.