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26 Cards in this Set
- Front
- Back
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_______ canadians have identified themselves as having seriously impaired vision |
615,950 |
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by age ___ , 1 in 0 candians will experience severe vision loss |
65 |
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by 2016, nearly _________ canadians will have severe vision loss |
1 million |
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comprehensive exam includes: |
-visual acuity -eye muscle function -external ocular structures (including pupil reflexes) -internal ocular structures |
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examination reveals not only eye function but also _____________, _____ and ______ components, ___ cranial nerves |
central nervous system, sensory and motor, 4 cranial nerves(2,3,4,6) |
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visual acuity |
-distance vision- snellen chart -near vision - jaegar pocket screener -colour vision - ishihara cards |
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visual fields |
-static confrontation -kinetic confrontation |
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extra-occular muscles |
-corneal light refelx -cover test -cardinal directiosn |
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snellen |
20 feet away -should wear glasses if needed -one eye at a time |
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jaegar card |
-can be used to test visual acuity at the bedside -held 35cm from the patient's eye (simulates the snellen chart) -presbyopia - impaired near vision..found in middle/older age |
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ratio of arteries |
veins width typically 2:3 or 4:5 |
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macula |
on temporal side -darker avascular area with a center known as fovea centralis |
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midriatic drops |
may precipitate acute angle closure glaucoma -those at risk include patients with history of glaucoma and extremely far sighted patients -patients receiving midriatic drops should also be warned to expect blurred visions, light sensitivity and should NOT drive for 1 to 2 hours following pupil dilation |
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the abbreiations OD, OS, and OuU are no longer used to document eye findings because |
because of the potential error for medical-order and medication errors instead we write out "right eye" "left eye" or "both eyes" |
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health promotion: |
changes in vision, cataracts, macular degen, glaucoma, diabetic retinopathy, -prevention of eye injury -reduction of risk factors |
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every ___ minutes in canada, someone begins to lose their eyesight |
12 |
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___% of vision loss can be prevented |
75 |
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infants and toddlers |
first eye exam between 6 and 9 months |
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preschool children (2-5) |
one eye exam between 2 and 5 years |
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school age children (6-19) |
every year |
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adults (20-39) |
every 2-3 years |
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adults (40-64) |
undergo eye exam every 2 years |
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adults (65 years or older) |
annually
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abnormal findings |
conjunctivitis - redness -when conjuctiva becomes irritated, blood vessels enlarge making eye appear red in colour -usually caused by bacterial, viral of other infection -can also be a from allergy or irritation |
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cataracts |
opacities of the lens visible through the pupil |
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diabetic retinopathy |
l |
