Term
| sudden SEVERE painless loss of vision |
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Definition
CRAO: Central Retinal Artery Occulsion
-damage irrev. after 90 min
causes: same as BRAO but also giant cell ARTERITIS
macula cherry red spot |
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Term
| BRVO: branch retinal vein occulsion |
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Definition
blurry vision (retinal edema), superfi. hemmorrhages, cotton wool spots(nerve fiber layer infarts), usually at AV crossing
-hypertensive patients >50, m CVD
-can be caused by clots or artery pressing on vein |
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Term
| CRVO: central retinal vein occulsion |
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Definition
-Worse than BRVO
-dilated and tort. ret veins
-swollen optic disc
-intraretinal hemorrhages
-retinal edema( blurry vision)
-caused by clots or art pressing |
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Term
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Definition
blood on iris, painful, vision loss
when retina has occulsion and is deprived of O2, abnormal BV form to supply eye with O2 |
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Term
| CRVO: central retinal vein occulsion |
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Definition
-Worse than BRVO
-dilated and tort. ret veins
-swollen optic disc
-intraretinal hemorrhages
-retinal edema( blurry vision)
-caused by clots or art pressing |
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Term
|
Definition
blood on iris, painful, vision loss
when retina has occulsion and is deprived of O2, abnormal BV form to supply eye with O2 |
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Term
| what are the THREE main types of EMBOLI |
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Definition
| cholesterol-hollenhurst plaques -platlet-fibrin emboli in arteriosclerosis -calcific-diseased cardiac valves all three are CAUSES of BRAO and CRAO |
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Term
|
Definition
| cherry red spot on macula; emboli& giant cell arteritis |
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Term
|
Definition
|
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Term
| cherry red spot on macula |
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Definition
|
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Term
|
Definition
| think either BRVO or CRVO |
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Term
|
Definition
transient (passing quickly) s-min ,painless,monocular,
cause: embolic phenom w/in cartoid distrubution |
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Term
|
Definition
-inflam of med/large art of neck, up body and arms
-a cause of CRAO |
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Term
|
Definition
inflam of head and neck BV
-very SEVERE
-assume, tx
symptoms: amaurosis fugax, jaw pain, headache esp in temporal region, fever, wt loss, sweating, fatigue, sometimes visible swollen temporal artery-pain |
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Term
| leading cause of death in patients with RAO |
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Definition
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Term
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Definition
two stages: non-proliferative and prolif(produces BV)
-most common cause of blindness in US (20-64) world is tracheoma
-the longer they are diabetics, the higher the chance of having Diab. retinopathy
-possible cause: hyperglycemia-phys changes result in damage(not just eye) |
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Term
| leading cause of blindness in working age americans |
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Definition
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Term
| Non proliferative Diabetic Retinopathy |
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Definition
first stage, bv leak fluid into retina-blurred vision -confined to retina vs. prolif
-vein turns bc kinks when art is compressing on it -sluge after edema is gone (ie: bathtub empties) -dot and blot intraretinal hemorrh. -dilation and beading of BV |
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Term
| proliferative Diabetic retinopathy |
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Definition
more severe, advanced form of DR, bv start to grow in eye, fragile and can rupture-bleed in retina-
-extraretinal-forms new vessels (fibrous) |
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Term
| Advanced Diabetic retinopathy |
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Definition
| assoc. with Cardio risk factors |
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Term
|
Definition
| at an increased risk of heart attacks, stroke, diabetic neuropathy, amput, death |
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Term
|
Definition
| diabetic macular edema:retinal edema invol. macula |
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Term
|
Definition
diabetic macular edema
diabetic macular ischemia
Non-proliferative DR
proliferative DR |
|
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Term
| diabetic macular ischemia |
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Definition
| foveal avascular zone becomes enlarged bc of non-perfusion of caps |
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Term
|
Definition
progressive optic neuropathy with associated visual field loss
-beta blockers, laser
-assoc with intraocular pressure-not always cause
-OPTIC NERVE
-group of disorders that damage op. nv |
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Term
|
Definition
severe eye or head PAIN, sick(nausea, vomit) dec in vision of eye affected
cause: rapid sudden pressure increase
-considered the heart attack of opthalmology |
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Term
|
Definition
| laser surgery used to create hole to relieve pressure |
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Term
| age related macular degeneration AMD |
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Definition
| leading cause of: loss of central acuity in >50 yr olds in US |
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Term
|
Definition
-age
-+ fam history
-smoking
hyperopia
light iris color
hypertension, CVD
FEMALES! |
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Term
| what are the two forms of AMD |
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Definition
1. dry (non-exudative)
2. wet (exudative) |
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Term
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Definition
drusen (sm round yellow lesions)
-check one eye at a time-daily if at risk
-antioxidants |
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Term
|
Definition
presence of a choroidal neovascular membrane
-CNV(choroidal neovascularaztion) is ingrowth of new vessels from the choriocappillaris through a break in Bruch's membrane into the subpigment epithelial space |
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Term
|
Definition
| Dry macular degeneration occurs when the macula becomes thin and dries out. Small yellow deposits, called drusen, form under the macula. As these drusen increase in size and number, they create a blurred spot in the central vision of the eye. Almost all people with macular degeneration have the dry form. |
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Term
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Definition
| Wet macular degeneration occurs when abnormal blood vessels grow under the macula and retina (this is called choroidal neovascularization). These vessels can leak blood and fluid, damaging the macula. Vision loss in the central vision can occur very quickly. Only about 10 percent of people with macular degeneration have this form, but it causes most of the vision loss associated with the condition. |
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Term
|
Definition
most common intraocular malignancy in KIDS
1 in 20,000
90% diag by age 5
FATAL if 2-4 yrs untreated
30% bilateral, 30% multifocal
---presentation: NO RED reflex REFER,
leukocoria: white pupil -60%
-22% strabismus |
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