Other causes can include trauma to the eyes, ocular neoplasia (tumor growth on the eye), and inflammation of the blood vessels in and surrounding the eye. Other metabolic causes can include hyperthyroidism, characterized by increased levels of thyroid hormone hyperproteinemia, which is increased protein in the blood and hypoxia, low levels of oxygen present in the body's tissues. High blood pressure (hypertension) in dogs has been shown to be causative factor for retinal detachment. Exposure to certain toxins can also cause the retina to detach. Glaucoma, for instance, is one such condition. If both retinas are detached, it is most likely a sign of a more serious underlying medical condition. Some animals are born with congenital defects that cause retinal detachment to occur immediately or in the long term. While retinal detachment can happen in any breed and at any age, it is more common in older dogs. In some cases, the dog's iris may stay dilated and will not adjust properly when exposed to light. Symptoms and TypesÄogs experiencing a detached retina may show signs of blindness or reduced vision. If you would like to learn more about how retinal detachment affects cats, please visit this page in the PetMD health library. The condition described in this medical article can affect both dogs and cats. There are some forms of treatment, although retinal detachment may lead to permanent blindness. This can be caused by a variety of genetic and non-genetic factors, and in some cases is a result of a more serious underlying medical condition. Retinal detachment refers to its separation from the back of the eyeball. The retina is the innermost lining of the eyeball.
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