Pet Care Pet Care

Cat Third Eyelid Problems

The third eyelid or nictitating membrane contributes to tear formation and distribution. This light-pink structure normally rests out of sight in the inner corner of the eye. Sometimes the third eyelid will cover both eyes and make it appear that your cat's eyeballs are disappearing. This condition goes by the nicknames.

In most cases, haws are nothing to worry about. The cause is not known. It usually occurs in cats under two years of age that appearing good health. Cats with digestive upsets, intestinal parasites, or virus infections will some-times develop a "lazy third eyelid" in both eyes. This condition can also be seen with dehydration or (rarely) tetanus.

Cat Third Eyelid Problems Home Remedies

If there is no underlying illness, haws resolve with no treatment in three to eight weeks.

Cat Third Eyelid Problems Treatment

Your veterinarian will do a complete physical examination. Blood tests, a fecal exam (for worms and Guardia), radiographs (X-rays) and an electrocardiogram may be recommended, as well as tests for the feline leukemia and feline Timeout lenities (AIDS-like) viruses.

Anatomy Cat Third Eyelid

The third eyelid or the nictitating membrane is actually a modified form of conjunctival fold in the medial canthus part of the eye in almost all domestic animals.

Conjunctiva – The conjunctiva is divided into two parts, the bulbar surface and the palpebral surface. The bulbar surface is the cancave side facing the eyeball while the palpebral is the convex side that faces the eyelids.

Lymphoid Tissue – The lymphoid tissue is actually the diffused form of lymphoid follicles. It is located under the bulbar conjunctival. The cobble stone appearance of the surface is known as is due to the lymphoid tissue.

Cartilage – The tough T-shaped hyaline cartilage is responsible for supporting the third eyelid. The arms of the cartilage tissue are parallel to the margins of the eyelid. The stem of the cartilage extents up to the medial canthus and is embedded in the gland of the third eye lid.

The Third Eye Lid Gland – The gland produces about 30% to 40% of the aqueous solution of the eye.

Vasculature – It is a small artery that enters at the base of the third eyelid.

Smooth Muscles – the smooth muscles are present at the base of the eyelid.

The Haws Syndrome in Cats

The following information is on haws syndrome in Cats.

  • The third eye lid of the cats may become more prominent than usual. This may be caused due to the incidence of infection in the upper respiratory tract and gastroenteritis.
  • The haws syndrome in cats may also be due to the involvement of parasites inside the cat’s body. Parasites like the Dipylidium caninum or the tape worm and Spirometra spp might often be responsible for the condition of the haws syndrome in cats.
  • The cat third eyelid problem may also be caused due to temporary protrusion. The disease is can heal on its own. Your cat would probably take 2 to 8 weeks to get cured of it.
Permanent protrusions may damage the visual axis of the eye but can be successfully treated with the aid of surgical operations.
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