Dry eye disease in dogs has been proven to be the basics of stubborn lacrimal gland degeneration and inflammation, and cannot be completely cured. Only by finding the root cause can it be effectively prevented. So what are the causes of dog eyes dryness?
1. Cause of external causes
1. Drug causes: Sulfonamide drugs (eye drops commonly used by some people) can cause eye dryness in dogs.
2. Cause of surgery: eye saryngology caused by surgical removal of the third eyelid gland (cherry eyes).
3.Cause of canine distemper: Canine distemper virus can affect the lacrimal glands and the third eyelid glands, thereby causing temporary or permanent loss of tear secretion. If the owner suspects that his dog has canine distemper, he can use canine distemper test strips for testing. If the diagnosis is confirmed, he can give the dog antiviral treatment as soon as possible and inject the pet big canine distemper virus monoclonal antibody.
2. Normal growth changes
1. Spontaneous and elderly causes: The causes of saryngology in dogs are related to the aging of animals and the gradual atrophy of the lacrimal glands.
2. Autoimmunity causes: Up to 30% spontaneous serpentine serpentine is related to autoimmunity destroying the lacrimal glands and the third eyelid glands. Among the cases of saryngology in the ophthalmology clinic of the National Taiwan University Animal Hospital, there are relatively high proportions of immunity abnormalities, including allergic constitution or folliculosis infection.
3. Trauma caused by trauma in the eye socket or under the eye socket: The secretion of tears becomes abnormal due to the trauma caused damage to the lacrimal gland and the third eyelid gland, or the nerves that control the lacrimal gland and the third eyelid gland, causing the secretion of tears to become abnormal.
3. Genetic causes
Congenital or genetic causes: The development of congenital acinars often occurs in young or young adult dogs of mini breeds, such as Chihuahua and Yorkshire terrier. In addition, there are dog breeds that are genetically prone to saryngeal symptoms (but the age of onset is not certain), which is often related to autoimmune attack on the lacrimal gland. Dog breeds include Marcis, Yorkshire Terrier, Shih Tzu (detailed introduction), Puggo, Pekingese, Boston Terrier, Western Highland Gentle, King Charles Hound, Lhasa, British Cocker Spaniel, American Cocker Spaniel and British Bulldog.
4. Other reasons cause the lack of sensory nerve distribution on the surface of the eye (craninal nerve V). Craninal nerve VII is caused by the lack of parazygotic sensory nerves. And many unconfirmed or unknown factors have been raised.