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Med Surge 2 > Final 46 > Flashcards

Final 46 Flashcards

1
Q

Rods

A

Low light

Peripheral vision

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2
Q

Cones

A

Bright light
Color
Central vision

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3
Q

Glaucoma

A

Increased pressure resulting in hypoxia of photoreceptors and nerve fibers

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4
Q

Movement of the eye

A

6 vouluntary muscles

Cranial nerves 3, 4, 6

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5
Q

Emmetropia

A

Perfect refraction of the eye

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6
Q

Hyperopia

A

Farsightedness

Eye does not refract enough light

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7
Q

Myopia

A

Nearsightedness

Overbends the light

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8
Q

Astigmatism

A

Refractive error caused by unevenly curved surfaces on or in the eye, especially the cornea

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9
Q

Miosis

A

Pupillary constriction

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10
Q

Mydriasis

A

Pupillary dilation

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11
Q

Accommodation

A

Haze is shifted from a distant to near object

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12
Q

Convergence

A

Ability to turn both eyes inward

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13
Q

Arcus senilis

A

Opaque, bluish white ring within out edge of cornea. Caused by fat deposits

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14
Q

Presbyopia

A

40 eyes

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15
Q

Ishihanra chart

A

Color vision

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16
Q

Snellen chart

A

Letter chart

17
Q

Systemic conditions that effect the eye

A 
Diabetes
Hypertension 
AIDS 
Thyroid 
Lupus
18
Q

Drugs that affect the eye

A 
Antihistamines 
Decongestants 
Antibiotics 
Anticholenergic 
Opioids
19
Q

Nutrition

A

Fruit
Red, orange and dark green vegetables
Lutein, beta carotene

20
Q

Cataract

A

Decreased water
Increased density of lens
Painless

21
Q

PERRLA

A

Pupils equal round reactive to light and accommodative

22
Q

Near vision test

A

Rosenbaum pocket vision screener
Jaeger card
Hold 14 inches away

23
Q

Normal pupil diameter

A

3-5 mm

24
Q

Nystagmus normal

A

Normal finding for far lateral gaze

25
Q

CT scan

A

Bone structures
Tumor
Muscles

26
Q

Slit lamp examination

A

Magnifies anterior eye chambers

27
Q

Corneal staining

A

Ulcers
Foreign body
Trauma

28
Q

Tonometry

A

Measure IOP

Normal 10-21

29
Q

Fluorescein angiography

A

Eye circulation

30
Q

Electroretinogtaphy

A

Rentias response to light stimulation

Blood vessel changes from drugs

Med Surge 2 (19 decks)

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