Eye Pathology I - Adnexal Structures Flashcards
Micropalpebral fissure
Causes of micropalpebral fissures (3)
- Congenital - small eye
- Iatrogenic
- Infectious - feline herpes virus - conjunctivitis, eye disease in cats
Causes of macropalpebral fissures (2)
- Congenital
- Infectious (in rabbits and fowl) - inflammation pulls eyelids away from cornea
Adnexal structures of the eye (3)
- Eyelids
- Nictitating membrane (third eyelid)
- Lacrimal + accessory glands
Macropalpebral fissure
Entropion - external aspect of lower eyelid margin rolling inwards + rubbing cornea -> trauma
What is entropion / ectropion and what are the causes? (9)
Nasal fold trichiasis - eyelashes grow inwards toward the eye + rub against the cornea, the conjunctiva, and the inner surface of the eyelid
What is distichia, ectopic cilia, trichiasis and trichomegaly? (4)
Blepharitis
What is blepharitis and its causes? (4)
What is chalazion/meibomianitis and a sty? (Local blepharitis) (4)
What are the types of general blepharitis and what are the causes? (6)
Puppy strangles - blepharitis