Came home from a few hours out with a friend yesterday to find that Teddy's eye was weeping and closed over.
Took him straight to the vet who put some green dye in it and looked at it with an ultraviolet light, to discover that he's got an ulcerated cornea. His pupil was so tiny, she said he must be in an awful lot of pain.

While she had him on the table, I asked her to look at his ears as he'd been bothering with the one on the same side as his bad eye (I'm wondering whether it was scratching at his ear that caused the injury to his eye?) - he had a sore ear too.
Because his pupil was so tiny, she gave me Fucithalmic vet and Canaural asked me to go back again this morning. I saw our regular vet who said that the pupil was dilated now, and he was satisfied that it was a superficial injury but to up the eye drops to 4-5 times a day and go back at the beginning of next week.
Anyway, after we'd been home for a whole and I'd taken Teddy out for a walk, I noticed that his other eye was starting to show the same symptoms (drooping, with the corner of his eye covering the eye ball). He's also got diarrhoea - could this be a reaction to the eye dye, drops and ear drops?
Has anyone else's dog had the same thing? If so, what caused it and how long did it take to heal up?
Of course I'm worrying that it's something more serious than a minor scratch to the eye now.