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Opthalmology > The red eye > Flashcards

The red eye Flashcards

1
Q

Where does the lipid part of the tear film come from?

A

Meibomain glands

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2
Q

What is covered by the conjunctiva?

A

Eyelids
Sclera
Episclera

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3
Q

What is the name for the junction between the sclera and the cornea?

A

Limbus

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4
Q

What 4 things are in the conjunctive?

A

Epithelial cells
Goblet cells
Lymphoid tissue
Blood vessels

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5
Q

Which vessel pattern do you get with surface irritation? What does it look like?

A

Conjunctival

Dichotomous branching

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6
Q

What is the proper name for edema of the conjunctiva?

A

Chemosis

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7
Q

What is the episclera?

A

Connective tissue under the conjunctiva

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8
Q

What is an episcleral pattern?

A

Meandering

Signal intra ocular disease

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9
Q

What test should you do if you see an episcleral pattern?

A

IOP

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10
Q

What is the sclera?

A

Fibrous tunic

White of the eye

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11
Q

What are emisaria?

A

Holes in the sclera for bvs and nerves

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12
Q

The third eyelid contains lots of …

A

Lymphoid follicles

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13
Q

How does the third eyelid maintain its shape?

A

T shaped cartilage core

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14
Q

Up to ..% of the year film comes from the third eyelid?

A

30

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15
Q

What are the four layers of the cornea?

A

epithelium
stroma
decemets membrane
endothelium

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16
Q

What kind of epithelium is on the cornea?

A

stratified squamous

17
Q

neres in the cornea are myelinated or unmyelianted?

A

unmyelinated

18
Q

What nerve supplies sensory innervation to the eye

A

ophthalmic branch of the trigeminal

19
Q

How does the stroma stay dehydrated?

A

Na K ATPase pumps

20
Q

Corneal edema is due to…

A

overhydration of the stroma

21
Q

What test should you do if there is corneal edema?

A

there is a defect in the epithelium or the endothelium so do fluorescein stain, if not could be glaucoma or uveitis

Opthalmology (6 decks)

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