When eye pressure exceeds blood pressure, blood stops entering to nourish the retina, which could lead to blindness. At OneHowTo.com we explain in detail what the symptoms of glaucoma in cats so that you can detect it in time and offer your pet the necessary veterinary care.
Symptoms of glaucoma in cats: Steps to follow
The infections or inflammations in the eye are the most common causes of acquired or secondary glaucoma. A lens that is out of alignment can block the outflow of aqueous humor.
Congenital or primary glaucoma is usually very rare, although it has been observed to a greater extent in short-haired cats such as Persians and Siamese. Feline glaucoma can be associated with systemic infections such as toxoplasmosis, leukemia, feline immunodeficiency or coronavirus. This pathology can evolve to become chronic, going unnoticed until the eyeball enlarges.
The glaucoma symptoms will depend on the state of the disease. On the acute state, your cat will present a color change in the cornea due to edema, a dilated and fixed pupil, a very red eye and some visual deterioration. A feline suffering from acute glaucoma will have symptoms such as moderate tearing or the habit of squinting frequently, some redness will also be observed in the white part of the eye.
When the pupil is affected it will look larger, hardened and you will feel pain when the area around the eye is pressed. As the fluid pressure increases to more than 30 to 50 mmHg, the eye will get even larger and begin to bulge, you should know that normal pressure is 10 to 20 mmHg. Over time the retina of your cat’s eye will be damaged, the lens will be pushed completely or even out of alignment. All this progression be sudden or within weeks.
The subacute glaucoma symptoms they are similar to those described above although they vary in intensity. Bluish cornea, eye pain, visual impairment and even blindness, deformity and dilation in the pupils and red eye may occur.
When the state of feline glaucoma is chronic, the pain is variable, there may be corneal edema, pigments and vascular problems, very red eyes, opaque lens, dilated pupils, variable visual impairment and bulging of the eyeball. In all cases of glaucoma, another of the common symptoms that you can perceive in your feline is noticing a depressive behavior and even loss of appetite that ends in anorexia.
In many cases, there may be a increased pressure without symptoms. This process is called ocular hypertension, and should not be confused with glaucoma, although it is true that a tension problem can derive and degenerate into this eye condition.
That is why preventive treatment is very important and in some cases, eliminate the cause that can trigger this hypertension, such as treating stress, for example. Early diagnosis is essential so that your cat does not lose its sight, so if you suspect glaucoma, you should go to the vet.
For diagnose feline glaucomaIntraocular pressure must be measured, the interior is also examined with a procedure called gonioscopy to check the flow of fluid outside the eyeball, and ultrasound can even be used. An effort must be made to study the problem and distinguish glaucoma from other types of conditions such as uveitis and feline conjunctivitis, because they have similar symptoms. It is very important for your pet’s visual health to start treatment as soon as possible so that it does not suffer irreversible retinal damage.
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