Eye Conditions

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Canine Uveitis
Uveitis is an inflammatory process involving the middle of the three layers in the eye. To understand uveitis, it is important to know the basic anatomy of the eye. The...

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Corneal Dystrophy
Corneal dystrophy and corneal degeneration are diseases of the cornea characterized by white, opaque mineral (either cholesterol or calcium) deposits within the cornea (the clear front part of the eye)....

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Corneal Endothelial Dystrophy/Degeneration
The cornea is normally the transparent “windshield” of the eye, serving to protect the internal structures of the eye while allowing light to enter for vision. The endothelium is a...

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Ehrlichiosis (Tick Fever)
The Disease and its Transmission Ehrlichiosis (also called “tick fever”) is an infectious disease seen across the continental U.S. and occurs with the most frequency in the southern states and...

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Horner’s Syndrome
Horner’s syndrome is a collection of clinical signs that are seen together and often have a limited number of causes. These particular clinical signs seen with Horner’s occur due to...

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Inherited Eye Diseases in Collies
Collies are prone to several inherited eye defects, including the following: • Collie Eye Anomaly / Choroidal Hypoplasia (CEA/CH) • Persistent Pupillary Membranes (PPM) • Progressive Retinal Atrophy (PRA) Collie...

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Keratoconjunctivitis Sicca
Keratoconjunctivitis sicca (KCS) results from inadequate aqueous tears. To understand the “dry eye” syndrome, it is necessary to understand the normal health of the cornea as it relates to the...

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Lenticular Sclerosis
General Information The lens of the eye sits behind the colored iris; its job is to bend light rays to produce a sharply focused image upon the retina. New lens...

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Ocular Melanosis in Cairn Terriers
Ocular Melanosis is an eye condition that most commonly affects Cairn Terriers, though it has been reported occasionally in other breeds such as the Boxer. It is also called Pigmentary...

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Pannus (Chronic Superficial Keratitis)
Pannus, or chronic superficial keratitis, is a progressive inflammatory autoimmune disease of the cornea. Common clinical signs include pigmentation (brown discoloration), vascularization (blood vessel in-growth) and opacification (haziness) of the...

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Pigmentary Uveitis in Golden Retrievers
Pigmentary uveitis, or Golden Retriever Uveitis (GRU), is a disease primarily seen in the Golden Retriever breed and does not appear to be associated with any systemic disease or infection....

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Progressive Retinal Atrophy
To better understand progressive retinal atrophy, one must have a basic understanding of the function of the retina. The retina is a highly specialized tissue that lines the back of...

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Sudden Acquired Retinal Degeneration Syndrome (SARDS)
Sudden Acquired Retinal Degeneration Syndrome (SARDS) is characterized by sudden vision loss in the dog. As the name implies, this disease affects the retina, which is the back part of...

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The Merle Gene and Multiple Ocular Abnormalities
The Merle gene is responsible for a wide variety of beautiful coat and iris colors in the dog. This dilution gene acts to lighten the coat color. The dappling effect...

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