Some might say that the dog is exophthalmic which is certanly the case but I think that the underlying problem is more lagophthalmos – his eyelids just can’t close! This results in a severe exposure keratitis with pigmentation, oedema and quite possibly corneal ulceration. The answer is a canthoplasty as we have done here. We removed a small length of eyelid margin at the medial and lateral canthus and suture the lids together to reduce the length of the eyelid apereture. This reduces the exposure with all its related problems, including the pain and discomfort the dog must be in!