A cat's third eyelid, or nictitating membrane, is typically not visible unless there is an issue. Common causes for the appearance of the third eyelid include sleepiness, sedation, or medical ...

Research has shown the third eyelid functions much as the upper and lower lids do. Our family dog used to have a rather noticeable extra eyelid that became especially apparent when he dozed off, ...

Our family dog used to have a rather noticeable extra eyelid that became especially apparent when he dozed off, usually upturned on the rug. This is the fleshy curtain seen at the corner of each eye, ...

Editor’s Note: Healthy Paws is a column sponsored and written by the owners of Clarendon Animal Care, a full-service, general practice veterinary clinic and winner of a 2017 Arlington Chamber of ...

Felines have a third eyelid (nictitating membrane, nictitans, haw) arising from the corner of the eye nearest the nose, which is a white to pale pink pliable, thin layer of conjunctival tissue located ...

(via TEDEd) You know that little pink thing nestled in the corner of your eye? It’s actually the remnant of a third eyelid. In humans, it’s vestigial, meaning it no longer serves its original purpose.

Q Our terrier is now a little over a year old, and while we have yet to get him neutered, we are concerned about something called his third eyelid in his left eye, which has a rip in it after our cat ...

Like people, dogs can get red eyes. This can be due to allergies, debris in the eye, or a condition such as “cherry eye.” The ...

Avoiding general anesthesia for surgery in horses, when possible, is not only safer for the horse and surgeons but also more economical for the owner. However, not all surgeries can be performed ...

(MENAFN- The Conversation) Our family dog used to have a rather noticeable extra eyelid that became especially apparent when he dozed off, usually upturned on the rug. This is the fleshy curtain seen ...