This rather depressed looking twelve year old dog is presented with a red irritated eye. What is your likely diagnosis?
Well given that its a Bassett with a red painful(ish) eye my mind immediately springs to a diagnosis of glaucoma. But have another look at the redness – tiny vessels diffusely hyperaemic.
In dogs at least, an acutely glaucomatous eye should have engorged episcleral vessels with white sclera between them more like this:
And sure enough while the Bassett with the very red eye immediately above has an intraocular pressure of 45mmHg, the one we started off with only has a pressure of 8mmHg, and it isn’t blind! That makes it more likley to have a uveitis, with the only problem being that it has a dilated pupil while a uveitic eye should have a constricted one. Clearly it hasn’t read the books! We’ve put it on topical steroid drops and will watch and wait to see what happens.