![]() X-rays of the chest and abdomen to look for abnormalitiesĪ thyroid test to determine if the thyroid gland is producing too little (in dogs) or too much (in cats) thyroid hormone. Screening tests to rule out infectious diseaseĬultures, PCR testing, and other specialized tests, which can identify if specific parasites or diseases could be the cause In addition to providing a thorough examination of your pet, your veterinarian may recommend tests to identify the underlying cause.Ĭhemistry tests to evaluate kidney, liver, and pancreatic function, as well as sugar levelsĪ complete blood count to screen for infection, inflammation, anemia, and other blood-related conditionsĮlectrolyte tests to ensure your pet isn’t suffering from an electrolyte imbalance They may also refer you to a veterinary ophthalmologist for additional evaluation. Your veterinarian will perform a complete history and physical examination, including a thorough ophthalmic examination. Other symptoms include dilated pupils (when the eye shows no response to changes in light), discoloration of the white of the eye, or leaking of the eye and clumsiness due to your pet’s inability to see well. The severity of your pet’s ability to see is directly related to the seriousness of how detached her retina is, or if it impacts both eyes. The most serious symptom of a retinal detachment is reduced vision or, in some instances, blindness. There are several factors that can cause this disorder. It is extremely important to get your pet to the veterinarian immediately if you suspect they are having vision problems. When it becomes detached from the tissue supporting it, a very serious situation exists. **Please click here for information about SARDS.The retina is the light-sensitive tissue that lines the inner surface of the eye. Normal retinal electrical activity have either optic nerve or brain disease while blind dogs with absent retinal electrical activity have a retinal cause of vision loss. This test measures the retinal electrical activity. The diagnostic test of choice is called an electroretinogram. Retinal cause (such as SARDS), diagnostic testing is available. In these cases, to differentiate a brain cause of vision loss from a primary **In some cases of vision loss, there may be no visible retinal or optic nerve pathology. Cases where this is suspected are referred to a neurologist for consultation. Generalized brain disease may or may not be treatable. Early and aggressive therapy for optic neuritis is usually This is inflammation of the optic nerve and tends to be idiopathic. Most common optic nerve cause of vision loss is optic neuritis. Vision loss secondary to brain disease can involve the optic nerve, optic chiasm, optic tract, lateral geniculate nucleus, optic radiation, and/or visual cortex. However, retinal degeneration is unfortunately not reversible and tends to cause a permanent vision deficit. Depending on the underlying cause of the retinal degeneration and its extent, therapy may beĪvailable to slow down continued progression. ![]() Retinopathy (IMR), chorioretinitis, ivermectin toxicity, vitamin E deficiency, and storage disease. Reattachment surgery may be indicated to help restore vision.Ĭauses of retinal degeneration include progressive retinal atrophy (PRA, PRCD), sudden acquired retinal degeneration syndrome (SARDS), glaucoma, immune-mediated Depending on the cause of the retinal detachment, medical therapy may be sufficient to allow reattachment and return of vision. Some of the more common causes of retinalĭetachment include retinal tears (rhegamatogenous), chorioretinitis, high blood pressure, vitreoretinal or retinal dysplasia, trauma, Collie Eye Anomaly, steroid responsive retinal detachment In general, retinal causes of vision loss include those conditions in which the retina is detached or degenerate. PleaseĬlick here for more information about cataracts in dogs. As long as retinal function is normal, the cataracts can usually be removed to restore vision. Inherited or genetic cataracts are the most common, followed by those secondary toĭiabetes, secondary to intraocular inflammation, and age. Opacification of the lens (cataract), is also a common cause of vision loss in dogs. Many of the corneal causes of vision loss can be treated to improve vision using either medical and/or surgical therapy. Ulceration, pigmentary keratitis, corneal scarring, pannus, corneal endothelial degeneration, and corneal degeneration may have enough opacification of the normally clear cornea to cause vision loss. Dogs with severe corneal disease including corneal The parts of the anterior segment of the eye that may contribute to vision loss include the cornea and the lens. Please click here for a general diagram of ocular These areas include the anterior segment of the eye (cornea or lens), the retina, and the brain Vision loss in all animals can generally occur in one of three areas.
0 Comments
Leave a Reply. |