My dog had a condition called extraocular myositis or polymyositis, where his eyes were very swollen due to an allergic reaction.
Polymyositis
Note: Additional information about polymyositis in dogs is available in a more recent post. Trust your instincts when it comes to your pet’s health. Two weeks ago I noticed such subtle differences in my mutt Ace’s eyes that I convinced myself I was imagining it. I make eye contact and look at his face several times a …