The retina is the tissue that lines the inner surface of the eye, and is the light sensitive part of the eye that acts as the brain's camera, transmitting images through the rods and cones that are part of its structure, thus enabling the experience of vision. The retina is part of the central nervous system (CNS) and the only part of the CNS that can be easily imaged and examined. In retinal degeneration, the cells of the retina begin to decline in function, thereby leading to impaired vision or even blindness. There are many causes for retinal degeneration.
Cats
Mean Age and Range
Genetic
Degenerative
Abnormal structure
Metabolic
Cancer
Nutritional
Infectious/Immune
Toxic
You will need to give a thorough history of your cat's health, onset of symptoms, and possible incidents that might have led to this condition, such as trauma or exposure to toxic substances. Your cat's diet will also be taken into consideration, since this may be a supporting cause. Taurine is now added to cat food, but because there is a history of retinal degeneration due to lack of taurine in the diet, your veterinarian will want to ensure that your cat is receiving sufficient levels in its diet.
Your veterinarian will perform a complete physical exam on your cat, taking into consideration your cat's lineage and whether there might be a genetic link. Standard laboratory tests include a blood chemical profile, a complete blood count, an electrolyte panel and a urinalysis, in order to rule out other causes of disease.
The physical exam will entail a full ophthalmic exam using a slit lamp microscope. During this exam, the retina at the back of the eye will be closely observed for abnormalities and the electrical activity of the retina will also be measured.
Genetic testing may also be done if your cat belongs to a breed that is prone to familial retinal disease. Additionally, hormonal causes may bring about retinal disease, and this will be considered as well. X-rays, computed tomography (CT) and magnetic resonance imaging (MRI) can be used effectively to screen for the effects of hormonal abnormalities.
There is no cure for retinal degeneration. Since diet can be a cause of retinal degeneration, making sure that your cat is receiving 500-750 ppm of taurine in their diet may improve the degeneration which has already occurred. If your cat's eyes are blind and non-painful, surgery will not be indicated. There are no medications that can reverse retinal degeneration.
Cats that have become blind as a result of suffering from retinal degeneration are generally not in pain, so they can continue to lead healthy, full lives once they have learned to compensate for the loss by sharpening their other senses.
If your cat is blind in both eyes, be sure to keep your cat indoors at all times so that it is not at risk of being injured or attacked. Your veterinarian will exam your cat's eyes for further retinal degeneration and for possible developing cataracts, glaucoma or uveitis at follow-up appointments.
Do not breed your cat if it has been diagnosed with retinal degeneration, as the disease is usually genetically transmitted. To prevent retinal degeneration caused by diet inadequacies be sure to feed your cat a diet that includes 500-750 ppm of taurine.
Copyright © 2005-2016 Pet Information All Rights Reserved
Contact us: www162date@outlook.com