My dog was involved in an altercation with another dog, resulting in an injury to the tissue surrounding his eye. A stain was done and no injury to the eyeball itself occurred. He came home with OptiVet drops, antibiotic eye ointment, atropine ophthalmic ointment, and Rimadyl. He has not had the atropine ointment in about 48 hours and his pupil is still very dilated. Is this normal?