Term
|
Definition
| normal constriction of pupils,subcortical reflex arc-no conscious control |
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Term
|
Definition
| reflex direction of eye toward object attracting attention |
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Term
|
Definition
| adaptation for near vision, curavture of lens increases by using ciliary muscles |
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Term
|
Definition
age related change
atrophy of elastic tissue so that upper lid rests on lashes,age related change
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Term
|
Definition
age related change
gray-white arc or circle around limbus. deposit of lipid material no effect on vision,age related change
[image] |
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Term
|
Definition
age related change,
lens opacity, clumping of proteins |
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Term
|
Definition
age related change
chronic open angle gluacoma-most common:gradual loss of peripheral vision
increased intraocular pressure |
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Term
|
Definition
age related change
breakdown of cells in the macula
loss of central vision |
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Term
|
Definition
age related change
yellowish elevated nodules on sclera
thickening of bulbar conjunctiva
caused by prolonged exposure to sun,wind,dust |
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Term
|
Definition
age related
abnormal
pingueculae can develop into this
opacity on bulbar conjunctiva, but grows over cornea, triangular opaque wing, yellow to white
chronic exposure to dry sandy climate[image]
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Term
|
Definition
age related change
soft raised yellow plaques on lids of inner canthus
no pathologic significance |
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Term
|
Definition
age related change
benign degenerative hylaline deposits on retina
small round yellow dots scattered
symetric in both eyes
no effect on vision
distinguish from abnormal hard exudates that occur in more circular or linear pattern |
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|
Term
| Other Age related changes |
|
Definition
- pupil size decreases
- lens loses elasticity>glasslike, loses ability to chane shape to accomodate for near vision:presbyopia
- need more light to see
- central acuity decreases esp after age 70
- bulging lower lids
- decreased tear production-burning
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|
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Term
|
Definition
age related change
or can occur from trauma
ectropion: lower lid loose and pulling out,excess tearing
entropion: lower lid rolls in,lashes may rub and irritate |
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Term
|
Definition
"pink eye"
bacterial (purulent d/c), viral, allergy,chemical
usually red around periphery,clear around iris
[image] |
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Term
| subconjunctival hemorrhage |
|
Definition
red patch on sclera
usually not serious
sharp edges
caused by increased ocular pressure |
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Term
|
Definition
deep dull red around iris and cornea
pupil shape may be irregular
marked photophobia
blurred vision
throbbing pain
Immediate referral |
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|
Term
| acute narrow angle glaucoma |
|
Definition
circumcorneal redness around iris
dilated oval pupil
cornea looks steamy
cloudy vision
sudden eye pain
halos around lights
increased intraocular pressure from blocked outflow
Emergency tx to avoid permanent vision loss |
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Term
|
Definition
appearance of malalignment due to epicanthal folds
have normal corneal light reflex |
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Term
|
Definition
conjunctivitis of newborn
purulent d/c |
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Term
|
Definition
white spots around edge of iris
occasionally may be normal but usually suggest Down's syndrome |
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