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Phys Diag- Block I > Eye > Flashcards

Eye Flashcards

(84 cards)

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1
Q

flame shaped and dot-blot hemorrages might be an indication of

A

diabetes

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2
Q

Emmetropia

A

normal vision

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2
Q

Grid

A

Estimation of the size and location of lesions

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2
Q

Lipemia Retinalis

A

blood vessels become progressively pink them white as triglyceride levels rise.

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2
Q

normal cup/disc ratio

A

0.5

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3
Q

LR6SO4AR3

A

Lateral Rectus (CN VI), Superior Oblique (IV); all the rest III

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4
Q

diopter settings

A

Lenses in varying powers of magnification are used to focus on the structure being examined by either diverging or converging the light.

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4
Q

Emmetropia

A

normal refractive condition of the eye, light accurately focused on retina

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5
Q

sclera

A

provide strength, structure, and protection

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5
Q

Visual impairment/loss

A

any fraction under 20/20 refers to some form of visual impairment

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6
Q

retina

A

transforms light impulses into electrical impulses

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7
Q

cornea

A

focusing the light that comes into our eyes.

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8
Q

Diplopia

A

Double vision

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9
Q

what is legal blindness

A

20/200

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9
Q

macula

A

responsible for detailed central vision

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9
Q

pupils should be

A

PERRLA - equal, round, reactive to light (with accomidation)

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10
Q

external examination of the eye should start with the ______________ and moved inward.

A

eyebrows

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11
Q

what is another name for corneal light reflex?

A

Hirschbergs test

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11
Q

the conjunctiva should be

A

translucent and free of erythema

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12
Q

hypotropia

A

eye turns down

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13
Q

order from the most exterior structure to the most intertior 1) lens 2) cornea 3) pupil

A

2, 3, 1

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14
Q

Hyperopia

A

Visual image is focused beyond the retina

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14
Q

key compontent for external eye exam

A

symmetry or asymmetry

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15
Q

choroids

A

supplies oxygen to the outer layer of the retina.

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16
Eye Muscles
superior, inferior, medial, and lateral rectus muscles. superior and inferior oblique muscles
18
order from the most exterior structure to the most intertior 1) choroid 2) sclera 3) retina
2, 1, 3
19
test for peripheral vision
confrontation test
20
pupil
which light travels to the retina
21
presbyopia
aging vision - lens loses ability to focus - difficulty up close
22
Myopia
Visual image is focused in front of retina
22
check surrounding eye structures for
size, texture, and extension of hair, edema in orbital and preorbital area a
24
what two structures of the eye are avascular?
sclera and cornea
25
what does corneal light relfex test for?
strabismus
25
sharply defined borders, yellow in color, clusters near vessels and caused by lipid transudation through incompetent capillaries, might be
diabetes
26
Cobalt Blue Light
Used to elicit the fluorescence of a dye fluorescein when added to the eye, good for Lesions from herpes simplex virus or small corneal abrasion
27
an EOMSs can is used to evaluate
conjugate gaze, nystagmus, lid lag
28
eyelids should be inspected for
fasciculations or tremors of eye
30
lens should be
transparent
31
Lacrimal Gland
tear production
32
Exophthalmos/Proptosis
Bulging of eye anteriorly out of orbit
34
conjugate gaze
movement of both eyes with the visual axes parallel.
36
Exopthalmos
increased volume of the orbitalcontent, causing protrusion of the globes. (bug eyes)
37
test for color vision
using primary colors
38
esotropia
eye turns in
40
blood vessels that are appearing pink to white might be an indication of
hypercholesteremia
42
myopia
nearsightness - far objects are blurred
43
hyperopia
farsightness - near objects are blurred
43
Anisocoria
Unequal size of pupils.
44
optic nerve
ransmits electrical impulses from the retina to the brain - CNS
45
eyelid
distributes tears over the surface of the eye, limits the amount of lights entering it, and protects the eye from foreign bodies
46
OU
both eyes Oculus uterque
48
optic disc
point where the axons of retinal ganglion cells come together.
49
visual acuity measures
the discrimination of small details, CN II (optic nerve), measurement of central vision
50
Ptosis
Congenital or acquired weakness of levator muscle or paresis of occulomotor (III) - dropping of upper eyelid
50
10+ and -20 you should see
see the iris
51
cornea should have
clarity, with no blood vessels present
52
lens
contraction or relaxation of the ciliary body changes its thickness, allowing images of various distances to be focused by the retina.
53
hypertropia
eye turns up
55
chart used for direct central vision
Snellen
57
palpate the eyelides for
nodules
58
the higher the diopter number the _______ magnification you will have, with a _______ field of vision
less, wider
59
iris
controls the amount of light that is able to reach the retina
60
pseduostrabismus
false strabismus, more often with Native Americans and East Asian infants
62
exotropia
eye turns out
63
OS
left eye - oculus sinister
64
Strabismus
Both eyes do not focus on an object simulatneously, but can focus with either eye
65
grey colored ring around the cornea might be an indication of
hypercholesteremia
66
cotton wool spots, decreased arteriole size, hemorrages, and papilledema, might be an indication of
hypertension
67
iris should have
a clear pattern
69
Small Aperture
Used for examinations with small pupils
70
OD
right eye - oculus dexter
71
Polarizing Filter
Used to reduce glare
72
Large Aperture
large or dilated pupils.
73
retinopathy.
changes in retinal vessels, thinning
75
fovea
center most part of macula
76
Astigmatism
Blurred vision caused by irregular shape of cornea or irregular curvature of lens
77
sclera should be
white
78
Nysagmus
evaluate during extraocular muscle testing
79
thyroid disease - indication in eye
stare sign, enlargement and pushing forward of eye
80
Slit
determination of the elevation of lesions
81
nystagmus
involuntary eye movement
82
cililary body
produces the aqueous humor (btwn lens and cornea) and provides accommodation (focusing)
83
conjunctiva
thin, transparent tissue that covers the outer surface of the eye
84
Pappilledema
central vessels pushed forward, veins dilated, venous pulsations not present, and hemorrage

Phys Diag- Block I (7 decks)

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