Conditions of the Cornea and Sclera in Dogs Flashcards
How thick are the epithelium and endothelium of the cornea?
Epithelium - 6-8 cells thick
Endothelium - 1 cell thick
What is a slit beam used for when looking at the cornes?
Highlights deviations of depth. Also used for spotting particulates in aqueous as ‘flare’.
What does fluorescein dye adhere to in the eye?
Adhere to exposed corneal stroma but not exposed corneal stroma.
What does anisocoria mean?
Asymmetry to pupil size.
Why does reflex uveitis occur?
Occurs secondary to anterior ocular pain (ulcer)
What would you treat reflex uveitis with?
Mydriatics (atropine)
What would a blue/grey corneal opacity indicate?
Epithelial or endothelial loss
What would a red corneal opacity indicate?
Vascularisation and haemorrhage
What would a white corneal opacity indicate?
Fibrosis, infiltrate (cellular), lipid or calcium
What would a black/brown corneal opacity indicate?
Pigmentation or sequestrum.
How would blood vessels due to superficial neovascularisation interact with the limbus?
They would cross the limbus
How would blood vessels due to deep neovascularisation interact with the limbus?
They would not cross the limbus
What syndrome is black/brown pigmentary keratitis part of and how would you treat this?
Brachcephalic Ocular Syndrome, should lubricate the eyes on a daily basis with a topical immunomodulating agent such as ciclosporin or tacrolismus
Which breeds are predisposed to chronic superficial keratitis?
German shephard and greyhound
What could you use to treat an uncomplicated superficial epithelial ulcer?
Analgesia, antibiotic prophylaxis, lubrication
