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
Because red eyes in a dog can be a sign of an underlying disease or condition, blood work and other testing is commonly done in a veterinarian's office to rule out or confirm serious diseases, according to PetMD.
PetMD explains that ultrasound eye imaging and tonometry, or the measurement of pressure inside a dog's eye, are two commonly used tests to help diagnose a cause for red eyes. If any pus or discharge is present in the eye, a bacterial culture and sensitivity profile is used to determine if an infection or allergic reaction is occurring.
Most cases of eye redness in dogs can be treated on an outpatient basis, however, in the case of glaucoma, surgery is typically required to repair the eye. A cone collar is commonly used after any treatment on the eyes to prevent a dog from scratching at the eyes and preventing healing, according to PetMD.Learn more about Veterinary Health
A dog may have blood shot eyes when there is blood present in the eyelids or blood in the eyes vessels, which can be caused by conditions such as hyperemia and ocular vasculature. These health issues cause large amounts of blood to build in in the eyes, resulting in inflammation and visible redness.Full Answer >
Occasionally after a dog has been spayed, she will continue to exhibit behavioral and physical signs of being in heat, including bleeding, according to PetMD. These signs are the result of parts of the ovary tissue being left behind, which still remains functional and continues to secrete hormones.Full Answer >
Fleas, ticks, mites, skin infections and allergic reactions cause scratching in dogs, according to PetMD. Dogs commonly experience seasonal and environmental allergies due to grasses, weeds and trees. Some dogs have food allergies that trigger inflammation and itching of the skin.Full Answer >
Jaundice is the most common cause of the whites of the eyes, or sclera, turning yellow. While jaundice refers to this happening in any part of the body, the formal term for yellowing of the whites of the eyes is icterus.Full Answer >