Eyelid disorders are a common cause of feline eye disease.
The upper and lower eyelids should lie in close apposition to the cornea and within the palpebral fissure there is very little exposed conjunctiva except for a small portion of third eyelid conjunctiva at the medial canthus and sometimes, a small area of bulbar conjunctiva laterally.
Adult cats blink infrequently, a complete blink takes place about once every 5 minutes and incomplete blinks are rare. As in humans, the upper eyelid is more mobile than the lower. A common sequela of eyelid disease is eyelid inflammation (blepharitis).
Common eyelid diseases include:
- Haw's syndrome - prolapse of third eyelids
- Congenital eyelid diseases
- Cherry eye
- Eyelid dermatoses
- Ocular dermoid
- Barnett, KC & Crispin, SM (2002) Feline Ophthalmology: An atlas & Text. WB Saunders Ltd, USA