Opthalmic Dyes and Evaluation of the Lacrimal System Flashcards Preview

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Flashcards in Opthalmic Dyes and Evaluation of the Lacrimal System Deck (11)
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1
Q

The pathway for Afferent Reflex Tearing is:

a. Cornea/nasal mucous -> nasociliary n. -> long/short ciliary n. -> pain signal to trigeminal ganglion (TG) -> (V1) opthalmic n. -> lacrimal nucleus -> facial n. (Vll)
b. corneal/nasal mucous -> long/short ciliary n. -> nasociliary n. -> (V1) opthalmic n.-> pain signal to trigeminal ganglion (TG) -> lacrimal nucleus -> facial n. (Vll)

A

b

2
Q

The pathway for Afferent Reflex Tearing is:

a. Cornea/nasal mucous -> nasociliary n. -> long/short ciliary n. -> pain signal to trigeminal ganglion (TG) -> (V1) opthalmic n. -> lacrimal nucleus -> facial n. (Vll)
b. corneal/nasal mucous -> long/short ciliary n. -> nasociliary n. -> (V1) opthalmic n.-> pain signal to trigeminal ganglion (TG) -> lacrimal nucleus -> facial n. (Vll)

A

b

3
Q

The pathway for Efferent Reflex Tearing is.

A

GVE fibers travel from CN Vll -> pterygopalantine ganglion -> “hitchhike” with V2 branch (zygomatic) -> infraorbital fissure -> Lacrimal N (V1)

4
Q

The pathway for Efferent Reflex Tearing is.

A

GVE fibers travel from CN Vll -> pterygopalantine ganglion -> “hitchhike” with V2 branch (zygomatic) -> infraorbital fissure -> Lacrimal N (V1)

5
Q

Blinking is due to stimulation of _____ nucleus.

A

facial nerve

6
Q

Miosis is due to stimulation of _____ nucleus.

A

EW

7
Q

What would you suspect if you see “soapy” tears?

A

increased fatty acids in tears = MGD

8
Q

More viscous tears indicate what?

A

dry eye symptoms

9
Q

What does oil in the tear cause?

A

increased tear debris

10
Q

What is Schirmer 1 and 2 tear test testing for?

A

production of the tear system

11
Q

What is Jones Dye Test 1 and 2 testing of the tear system?

A

drainage