Eye Flashcards

1
Q

3 layers of the eye

A
  1. Fibrous layer
  2. Vascular layer
  3. Inner layer
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2
Q

what does the fibrous layer consist of

A
  1. Sclera

2. Cornea

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3
Q

what does the vascular layer consist of (3)

A
  1. Choroid
  2. Ciliary body
  3. Iris
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4
Q

what does the inner layer consist of (1)

A

retnia

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5
Q

Sclera is what portion of the eye

A

the white part

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6
Q

Aids in light refraction, with minimum distortion (what eye structure)

A

cornea

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7
Q

what is the innervation to

A

V1 (ophthalmic)

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8
Q

layer between the sclera and the retnia

A

choroid (this is the blood supply)

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9
Q

3 sections of the Ciliary body

A
  1. Ciliary process
  2. Ciliary muscle
  3. zonular fibers
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10
Q

Ciliary process function

A

aqueous humor

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11
Q

Ciliary Muscle function

A

reshapes lens

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12
Q

Zonular Fibers function

A

connects ciliary muscle to lens

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13
Q

effect on the ciliary muscle contraction on the else

A

lens becomes spherical

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14
Q

accomodation helps you see object that are (close far)

A

close

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15
Q

what changes the size of the pupil

A

iris

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16
Q

what is the name of the 2 muscles that change the size of the iris and thus the pupil

A

Sphincter pupillae: Parasympathetic
via CN III
Dilator pupillae: sympathetic

17
Q

Horners syndrome what happens to the pupil

A

constricted

18
Q

Is the retina innervated

A

no

19
Q

where in the eye are the photo receptors

A

retnia

20
Q

what part of the eye does High acuity vision

A

Macula and Fovea

21
Q

Entry of optic nerve,

blind spot

A

optic disc

22
Q

Sphincter pupillae sympathetic or parasympathetic

A

parasympathetic V3

23
Q

Partial or complete opacity

of the lens

A

Cataracts

24
Q

Chambers of the eye

A

anterior

posterior

25
Q

Aqueous Humor produced by what structure

A

Aqueous Humor

26
Q

what separates the anterior and posterior chamber of the eye

A

iris

27
Q

Circulates through chambers and drains through canal of Schlemm

A

Aqueous Humor

28
Q

Generally caused by failure to

drain aqueous humor

A

Glaucoma

29
Q

Progressive neuropathy what are you thinking

A

Glaucoma

30
Q

Filled with vitreous humor

A

Vitreous body

31
Q

skin on the inner eyelid

A

Conjunctiva

32
Q

Nasolacrimal duct drains inot what part of nasal cavity

A

inferior meatus

33
Q

Superior tarsal does what and what is it innervated by

A

action:elevate eyelid
innervation: elevate the eyelid
(involved in horners)