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Health Assessment
Eye
40
Health Care
Undergraduate 2
03/24/2012

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Cards

Term
Sclera
Definition
Outermost layer, hard fibrous part of eye seen anteriorly
Term
Cornea
Definition
Clear, transparent part of sclera; window of the eye
Term
Choroid
Definition
Middle layer; vascular-pigmented layer
Term
Iris
Definition
Circular muscular aspect; center of iris opens to pupil
Term
Retina
Definition
3rd innermost membrane; sensory portion of the eye
Term
Optic disc
Definition
Nasal aspect of retina; vascular network enters eye
Term
Macula
Definition
Responsible for central vision
Term
Emmetropia
Definition
Normal refractive condition of eye
Term
Myopia
Definition
Nearsightedness; can't see objects at far range
Term
Hyperopia
Definition
Farsightedness; can't see objects at close range
Term
Presbyopia
Definition
Loses elasticity; can't adjust
Term
Lens
Definition
Directly behind the pupil
Term
Cataract
Definition
Lens thickens and yellows; reduces lens clarity
Term
Snellen E Chart
Definition
Tests for vision
Term
Legal blindness
Definition
Vision of 20/200
Term
Jaeger or Rosenbaum chart
Definition
Held at a distance of 12-14 inches; tests for near vision
Term
Nystagmus
Definition
Rapid fluttering of eyeball, occurs at completion of rapid lateral eye movement
Term
Convergence
Definition
Turning inward of the eye; pupils constrict
Term
Accommodation
Definition
Change in size to adjust vision from far to near
Term
Ptosis
Definition
One eyelid drooping; cranial nerve damage or systemic neuromuscular weakness
Term
Red reflex
Definition
Reflection of light off retina
Term
Fovea centralis
Definition
Small white spot located in center of macula, sharpest vision
Term
Sclera crescent
Definition
Absence of pigment in choroid; dull white color
Term
Pigment crescent
Definition
Black; accumulation of pigment in the choroid
Term
Astigmatism
Definition
Refraction of light spread over wide area rather than on one distinct point
Term
Consensual constriction
Definition
Both eyes constrict when you shine light in one eye
Term
Acute glaucoma
Definition
Sudden increase in intraocular pressure; from blocked flow of fluid from anterior chamber
Term
Blepharitis
Definition
Inflammation of eyelids; staphylococcal infection leads to red, scaly crust lids
Term
Cataracts
Definition
Opacity in lens; usually occurs in aging
Term
Chalazion
Definition
Firm, nontender nodule on eyelid; infection of meibomian gland
Term
Conjunctivitis
Definition
Pink eye; infection due to bacteria or virus
Term
Hordeolum (stye)
Definition
Result of staphylococcal infection of hair follicles; affected eye is swollen, red, painful
Term
Iritis
Definition
Redness around iris and cornea; pupil irregular
Term
Diabetic retinopathy
Definition
Changes that occur in retina and vasculature or retina; hemorrhages, macular edema, retinal exudates
Term
Hypertensive retinopathy
Definition
Changes in retina in response to elevations in BP; atherosclerosis, heart disease, kidney disease
Term
Macular degeneration
Definition
Degenerative condition of macular, central retina; central vision is lost gradually
Term
6 cardinal fields of gaze
Definition
*2 feet in front of client
*Letter H
*Wagon wheel
Term
PERRLA
Definition
Pupils Equal Round Reactive to Light Accommodation
Term
Corneal light reflex
Definition
Client stares straight ahead; hold penlight 12 inches from both eyes; reflexion should appear in the same spot
Term
Cover test
Definition
Tests for balance mechanism (fusion reflex); keeps eyes parallel
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