what causes a dog to have bloodshot eyes
Quick Answer. The whites of a dog's eyes can be red due to a number of conditions, including an inflammation of the cornea, eyelid, conjunctiva, sclera, ciliary body or iris, according to PetMD. Other possible and more severe causes of red eyes are orbital disease, glaucoma, a hemorrhage at the front of the eye or a hemorrhage within the eye. Continue Reading.