Eyes and Vision (Chapter 15) Flashcards

(61 cards)

1
Q

inner eye can be easy route for

A

infection/bacteria

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2
Q

where is the lacrimal gland

A

upper eye by tail of eye brow

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3
Q

three cranial nerves for extra ocular movement

A

VI abducens
IV trochlear
III oculomotor

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4
Q

extra ocular muscle funtion

A

siz cardnial gazes
coronal light reflex

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5
Q

what do the six cardinal gazes measure

A

parallel tracking

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6
Q

what do the six cardinal gazes observe for

A

nystagmus

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7
Q

what is a nystagmus

A

lack of muscle control which results in difficultly tracking

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8
Q

corneal light reflex esotropia

A

inward turning of the eye

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9
Q

corneal light relflex exotropia

A

outward turning of the eyes

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10
Q

if you have vision difficulty what cranial nerve is that

A

II optic

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11
Q

what are we assessing for when asking for past history of ocular problems

A

recent exam
glasses/contacts

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12
Q

cataracts

A

opaqueness of lenses, can lead to blindness
overall blurryness

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13
Q

glaucoma

A

increase in intrauouclar pressure
lose peripheral vision

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14
Q

presobyopia

A

mid 40s, refractive error that makes it hard for middle aged and older adults to see things up close
FIRMNESS OF THE LENSE

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15
Q

hyperopia

A

people can’t see up close, occurs at any age
EYES INABILITY TO PROCESS LIGHT

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16
Q

macular degeneration

A

blindness, legally blind, loses central vision, still has peripheral vision, difficultly distinguishing faces

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17
Q

what causes macular degeneration

A

diabetes, hypertension, smoking, medication, long use of pesticides

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18
Q

periorbial edema

A

congestive heart failure

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19
Q

hordeolum

A

stye
inflammation of gland

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20
Q

blepharitis

A

infection of hair follicle

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21
Q

ptosis

A

drooping of eyeling

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22
Q

ptosis is caused by

A

cranial nerve
bells palsey
stroke

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23
Q

exophtalmos

A

protrude
thyroid condition

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24
Q

conjuctiva color

A

clear

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25
pink eye
inflammation of conjunctiva very contagious viral/bacterial
26
sclera color
white, regardless of genetic background
27
where would liver cirrhosis be vissible
sclera
28
dacryocytisis
inflammation around lacrimal sac/infection
29
RED FLAG
unequal pupils can mean neurologic event/condition
30
anisocria
5%, one pupil smaller than other, born this way, react together
31
fixed and dilated
large pupils, apply stimuli and no change, coma, major trauma, induced coma
32
constricted and fixed
small pupils, apply stimuli and no change
33
pupillary light reflex
direct and consensual
34
direct
look at eye with light
35
consensual
look at other eye with the light not in it comparing the 2 eyes what happens on one eye should happen in the other
36
4 steps of pupillary light relfex
light in R eye - direct - consensual light in L eye - direct - consensual
37
where do we start for direct relex
on side of face
38
things that constrict the eyes
narcotics alcohol heroin moprhine truama neurologic event
39
things that dilate the eyes
illegal drugs - coccaine, weed, amphametapines trauma/head injury atropine
40
what is atropine
used to dilate pupils at eye doctor
41
atropine inhibits pupils ability to
accomadate
42
why do we get a eye change with a stroke
lack of blood flow
43
accomodation
look at distance, relaxes eye and dilates focus close constriction
44
accomadation tests
constriction
45
what CN are responsible for constriction
3,4
46
Jaeger chart
near distance
47
numurator on snellen chart
distance from chart, 20ft, same number
48
denominator on snellen chart
distance a normal eye could read
49
20/50 good or bad
bad
50
20/15 good or bad
good
51
when doing the snellen chart make sure pt has
contacts/glassess
52
denominator larger, good or bad
bad
53
denominator smaller, good or bad
good
54
red reflex
reflection of the light from opthalmoscope off inner retina
55
what color would red reflex be on light iris
red
56
what color would red relex be on dark iris
orange
57
normal iris
flat, round, evenly colored
58
pupils
equal L and R, 3-5mm
59
myopia
nearsighted, deeper oval eye/ need (-) diopter
60
hyperopia
farsighted, shorter globe/ need + diopter
61
dilated non reactive
increased intracranial pressure