Eyes Flashcards

(48 cards)

1
Q

what could be causing a visual disturbance that looks like a curtain coming down

A

retinal detachment

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2
Q

what are causes of sudden loss of vision

A
retinal detachment
vitreous hemorrhage
central retinal artery occlusion
CVA
trauma
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3
Q

what comorbid disease is common to have central retinal artery occlusion

A

temporal arteritis

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4
Q

What can cause gradual loss of vision

A
aging
cataracts, glaucoma
HIV
autoimmune
DM
congential
macular degeneragtion
neoplasms like retinoblastomas
psudeotumor cerebri
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5
Q

What is hyperopia

A

farsighteness, difficulty seeing near

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6
Q

what is myopia

A

nearsightedness, difficulty seeing far

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7
Q

what is presbyopia

A

aging vision, progressive difficulty seeing near objects

lens can’t accommodate as well

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8
Q

what is diplopia

A

double vision

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9
Q

what is heterophoria and the types

A

failure of the visual axes to remain parallel
esophoria- one eye deviates inward
exophoira- one eye deviates outward

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10
Q

how can you tell if eyes are looking forward when checking for heterophoria. “cover test”

A

the good eye will focus on the light in pupil

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11
Q

first part of eye exam

A

visual acuity

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12
Q

what eye chart do you use for far vision

A

snellen eye chart 20 ft away

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13
Q

what eye chart do you use for near vision

A

hand held card at 14

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14
Q

how far away can someone with 20/20 read newspaper

A

14ft

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15
Q

someone with corrective lenses how do you do the exam

A

with then without lenses

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16
Q

what is OD OS OU in reference to eye examination

A

OD is right
OS is left
OU is both eyes

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17
Q

what is homonymous hemianposia

A

cannot see R half visual field both eyes

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18
Q

what is bitemporal hemianopsia

A

cannot see lateral visual fields

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19
Q

what is quadrantic defect visual field

A

same 1/4 visual field is gone both eyes

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20
Q

what do people with ectropion eyelids complain of

A

constant tearing since eye lid is turned out

21
Q

what is the bulbar conjuctiva

A

cover anterior eye

22
Q

what is the palpebral conjuctiva

A

lines eyelids

23
Q

what condition can cause blue eyelids

A

osteogenesis imperfecta

24
Q

What makes the sclera white in your eyes

25
What is the term anisocoira
unequal pupils greater than 0.5mm
26
describe parts of pupillary reaction to light
direct and indirect(consensual)
27
neuroargyle pupil
accommodates but does not react | neuro syphilis
28
what is nystagmus
fine rhythmic oscillations of eyes at the extreme lateral gaze
29
what is the function of the lens disc on ophthalmoscope
diopters (amount of focus)
30
When looking at optic disk what do you look for
clarify disc margin color of disc look for central small white depression known as the central physiologic cup
31
When looking at the optic disc what direction do you span out
medially first then superior inferior | LAST is laterally to look at macula since so sensitive for patients
32
bitemporal hemianopsia is a lesion where
optic chiasm | pituitary tumor?
33
what is pinguecula
small nodule on the bulbar conjunctiva | noes not cross over cornea
34
what is a pterygium
thickening of bulbar conjunctiva which grows across cornea
35
what is a sty
infection at margin of eyelid
36
what is chalazion
painless nodule involving meibomian gland
37
what is xanthelasma
flat yellow plaque under eye | hyperlipidemia, cholesterol
38
what is ptosis
dropoing eyelid
39
what is horner's syndrome
ptosis, miosis and andyrosis (lesion in sympathetics)
40
what disease involves CN VII
bells palsy
41
what is conjunctivitis
infection or inflammation of the conjunctiva | discomfort, discharge and topical antibiotics
42
what is subconjunctival hemorrhage
leakage of blood under conjunctiva | painless, sharply demarcated, resolves on its own
43
what is it if blood vessels are coming from lens out. "sun burst"
eye emergency | painful with light
44
what is a hyphema
blood in anterior chamber due to trauma
45
what is a papilledema
disc swollen with blurred margins. cup not visible | increased intracranial pressure
46
what is glaucomatous cupping
increased intraocular pressure causing an increased disc cupping
47
What is AV nicking
arterial walls become thickened and lose transparency | atheroscleroritc changes. artery nicks the veins
48
what are cotton wool patches in eye
infarcted nerve fibers seen in hypertensive retinopathy