Equine Orbit, Eyelids, Lacrimal Flashcards
What are the cardinal signs of ocular pain?
Squinting
Tearing
Pupil constriction
Photophobia
Periocular swelling
What is the #1 indicator for sight in a horse?
Dazzle response
What is epiphora?
Excessive tearing
Horses and cattle have a _____ bony orbit.
Complete
Where would you most likely see an eyelid laceration?
Upper lid
Lateral to medial tear
What should you try to do at all costs with an eyelid laceration?
Maintain lid architecture
Surgical repair
Only use dilute betadine to clean
What are treatment options for SCC?
Start with debulking!!
Cryotherapy
Hyperthermia
Chemotherapy
Piroxicam
Photodynamic dye therapy
How do you treat periocular habronema?
Topical steroid
Ivermectin (some are resistant so be careful)
Can cause self trauma
Fly control
Decrease inflammation
What is the most common ocular abnormality of foals? What usually causes this?
Entropion
Due to dehydration usually
What are the treatments of ocular SCC?
Debulking and strontium-90 irradiation (ideal)
Debulking and 5-FU
Piroxicam
What is the first step in treatment of periocular sarcoids? EXCEPT WHEN?
Debulking
Except when they are flat - no touchy
What are causes of exopthalmos?
Cellulitis/inflammation
Neoplasia
Cystic mass
What should you look for when you have a blocked nasolacrimal duct?
A secondary issue
Rarely primary - congenital lack of distal opening
