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29 results for “nictitating membrane”
A whitish membrane recently appeared over nearly half of my cat’s eye. I don’t know if it’s harmful to its health or future life.
From the photo, this is your cat's nictitating membrane, also called the third eyelid. Slight protrusion is normal - when the eyelid muscles are fatigued or the cat is deeply relaxed during sleep, the third eyelid can cover part of the eye, and if the cat is otherwise healthy this is not a pathological sign and will not harm its future wellbeing. However, if the exposed third eyelid is accompanied by squinting, an inability to open the eye, inflammation, or increased discharge, it may indicate third-eyelid hyperplasia or another disease that requires prompt anti-inflammatory treatment or a veterinary diagnosis.
My cat keeps sneezing, has watery eyes, low energy, and a white membrane at the corner of its eye
The white membrane is usually the normal third eyelid, but ongoing sneezing, tearing, and low energy suggest a cold or upper respiratory infection. Rule out viral causes first.
Canine Third-Eyelid Gland Prolapse (Cherry Eye): What to Do
A prolapsed third-eyelid gland, commonly called cherry eye, occurs when the gland under the nictitating membrane swells and pushes past its free edge, forming a pink fleshy mass. The standard treatment is surgical removal of the hypertrophic gland after disinfection and local anesthesia, followed by antibiotic eye drops.
Why Do Cats Have a Third Eyelid?
The nictitating membrane is a built-in transparent film that protects the eye from dust and bright light; many animals including birds have it too.
My cat’s eye is very swollen and I don’t know why
The swollen area covers the cat's nictitating membrane (third eyelid), which may be inflamed along with conjunctivitis. Bacterial infection, trauma, or foreign-body irritation are common causes.
My cat’s eyes look a bit off.
The photo shows the nictitating membrane (third eyelid); slight showing is normal, more if pressed or when eye muscles relax in sleep. If the cat is fine, it is not pathological. But if accompanied by squinting, inflammation, or more discharge, it may be eye disease needing treatment. Bilateral showing needs checking for dehydration, atrophy, pain, or inflammation.
Cat’s right eyeball rolls up — what is this and how to treat?
The white at the inner corner is the nictitating membrane (third eyelid); it may not retract if the cat is tense — observe, it may return when relaxed. If it stays out, the gland may be inflamed/swollen. Use an Elizabethan collar and antibiotic drops 2-3 days; if no recovery, surgery.
One of my cat’s eyes has a white film, the other won’t open, often tears, and the fur at the corner is gone, leaving a black layer.
The white film at one eye corner is the nictitating membrane (third eyelid), normal unless prolapsed or inflamed. The other eye's tearing has causes: 1) high oil/salt/fat diet causing heat and discharge; 2) congenital blocked nasolacrimal duct - surgery possible but recurs; 3) viral disease; 4) foreign-body irritation.
My two-month-old puppy suddenly has a piece of flesh protruding from the corner of its eye
A fleshy growth at the corner of a dog's eye is gland hyperplasia of the nictitating membrane - a protruding third eyelid, commonly called 'cherry eye.' It is usually caused by irritation, bacterial infection, or a congenital hereditary factor. Conservative treatment with anti-inflammatory eye drops can be tried first, but it carries a risk of recurrence.
Why won’t the white part at my cat’s inner eye corner go back in?
The white part at a cat's inner eye corner is its nictitating membrane (third eyelid). It may not retract because the cat is nervous — wait and it may go back when relaxed. If it stays out, the gland may be inflamed or blocked, causing third-eyelid prolapse. Put on an Elizabethan collar to stop scratching, and use antibiotic eye drops for 2-3 days; inflammation usually clears fast. If it lingers, see a vet for surgery.