The red eye Flashcards
Where does the lipid part of the tear film come from?
Meibomain glands
What is covered by the conjunctiva?
Eyelids
Sclera
Episclera
What is the name for the junction between the sclera and the cornea?
Limbus
What 4 things are in the conjunctive?
Epithelial cells
Goblet cells
Lymphoid tissue
Blood vessels
Which vessel pattern do you get with surface irritation? What does it look like?
Conjunctival
Dichotomous branching
What is the proper name for edema of the conjunctiva?
Chemosis
What is the episclera?
Connective tissue under the conjunctiva
What is an episcleral pattern?
Meandering
Signal intra ocular disease
What test should you do if you see an episcleral pattern?
IOP
What is the sclera?
Fibrous tunic
White of the eye
What are emisaria?
Holes in the sclera for bvs and nerves
The third eyelid contains lots of …
Lymphoid follicles
How does the third eyelid maintain its shape?
T shaped cartilage core
Up to ..% of the year film comes from the third eyelid?
30
What are the four layers of the cornea?
epithelium
stroma
decemets membrane
endothelium
What kind of epithelium is on the cornea?
stratified squamous
neres in the cornea are myelinated or unmyelianted?
unmyelinated
What nerve supplies sensory innervation to the eye
ophthalmic branch of the trigeminal
How does the stroma stay dehydrated?
Na K ATPase pumps
Corneal edema is due to…
overhydration of the stroma
What test should you do if there is corneal edema?
there is a defect in the epithelium or the endothelium so do fluorescein stain, if not could be glaucoma or uveitis
