Entropion has been documented in most dog breeds, although there are some breeds (particularly purebreds) that are more commonly affected than others. These include the Akita, Pug, Chow Chow, Shar Pei, St. Bernard, Cocker Spaniel, Boxer, Springer Spaniel, Labrador Retriever, Cavalier King Charles Spaniel, Neapolitan Mastiff, Bull Mastiff, Great Dane, Irish Setter, Shiba Inu , Rottweiler, Poodle and particularly Bloodhound. The condition is usually present by six months of age. Entropion can also occur secondary to pain in the eye, scarring of the eyelid, or nerve damage. The upper or lower eyelid can be involved, and one or both eyes may be affected. When entropion occurs in both eyes, this is known as “bilateral entropion.”
Upper lid entropion involves the eyelashes rubbing on the eye, but the lower lid usually has no eyelashes, so little or no hair rubs on the eye. Surgical correction is used in more … Read the rest
Causes of Glaucoma in Dogs
There are two main types of glaucoma–primary and secondary.
Primary glaucoma is a hereditary disease, and is seen most often in American Cocker Spaniels, English Cocker Spaniels, Basset Hounds, Beagles, Australian Shepherds, Chow Chows, Samoyeds, Shar Peis, Labrador Retrievers and Nordic breeds (Huskies, Elkhounds, etc.). In primary glaucoma, there’s a developmental defect of the drainage structures within the dog’s eye. Since the eye can’t drain properly, the pressure inside the eye slowly builds up to dangerous levels–usually by middle age, if not before.
Primary glaucoma usually begins in one eye, but in most dogs it eventually involves both eyes, leading to complete blindness. The second eye is usually affected from 5 months to two years after the first eye.
Secondary glaucoma in dogs occurs when something happens in the eye that prevents normal fluid flow and drainage. Some of these problems may be:
Cherry eye is the term used to refer to canine nictitans gland prolapse, a common congenital eye defect in various dog breeds where the gland of the third eyelid known as the nictitating membrane prolapses and becomes visible. Commonly affected breeds include the Bulldog, Chihuahua, Cocker Spaniel, Beagle, Pekingese, Neapolitan Mastiff, and Basset Hound. Cherry eye may be caused by a hereditary weakness in the connective tissue surrounding the gland. It is most common in puppies.
It appears as a red mass in the inner corner of the eye, and is sometimes mistaken for a tumor. After gland prolapse, the eye becomes chronically inflamed and there is often a discharge. Because the gland is responsible for about 30% of the eye’s tear production, the eye can eventually suffer from dryness (keratoconjunctivitis sicca). Dry eye may eventually occur in 30 to 40 percent of dogs that have the gland … Read the rest