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51 Cards in this Set
- Front
- Back
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location of pre-retinal hemes
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very superficial
located btw ILM and NFL |
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description of pre-retinal hemes
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boat shaped hemes
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what do pre-retinal hemes indicate
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peripheral vascular dz
arterial dz |
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do pre-retinal hemes block view of retina
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yes obscures underlying vessels
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which heme resolves the fastest
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pre-retinal hemes
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where are flame shaped hemes located
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in the NFL
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what is a flame shaped associated with when it comes from the peripapillary capillary bed
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glaucoma
radiates from disc |
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superficial flame shaped heme with inner infarcted area associated with what dz
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Roth spot
anemia, leukemia |
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how long do NFL hemes last
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6 weeks
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with what conditions are NFL hemes associated with
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retinal veion occlussions
HTN also ONH dysfxn |
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where are dot and blot hemes located
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INL, OPL, ONL
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what do dot and blot hemes indicated
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venous congestive dz
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what conditions are dot and blot hemes seen in
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Diabetic Retinopathy
OIS |
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which heme resolves the slowest
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dot and blot hemes
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describe dot and blot hemes seen on FANG
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blocks NaFl
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what should be done if a single dot and blot heme is seen in a patient
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nothing, 'normal' to have a signal isolated dot heme
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which heme occurs secondary to CNVM
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subretinal hemes
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where are subretinal hemes located
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btw RPE and sensory retina
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what color are subretinal hemes and why
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hray-green due to color of RPE pigment
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what does the RPE fxn as
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outer retinal blood barrier
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breakthrough of deep hemes
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subretinal hemes
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what can occur do to a subretinal heme
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non-rheg RD
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do subretinal hemes obstruct the view of the retina
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these are deep so you can see all the retinal features bc it is located UNDER the retina
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in what race is WWOP commom in
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black>>>asians
not seen in whites |
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what does WWOP represent
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an area of abnormal vitreoretinal interface
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Dark WOP in blacks should prompt you to ask for what hx
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hx of sickle cell anemia
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runs around circumference of eye within 1-2 DD of ora
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prominent vitreous base
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what is the strongest attachment of the vitreous to the retina
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vitreous base
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in what race is prominent vitreous base seen in
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whites
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represents enlrg of RPE cells with large scalloped borders that are very dark and can be small or very large
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RPE hypertrophy
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what is diagnostic of RPE hypertophy
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lacunae - areas of discontinuity
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what is RPE hypertrophy related to
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if see 4 or more rule out FAP (gardner's yndrome) especially if there is a family hx
FAP - colon cancer |
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repreents RPE cells invading sensory retina in response to injury, retinal tear, RD, or lattice
demarcation line of RD |
RPE hyperplasia
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when does demarcation line of RD arise
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90 days after RD
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RPE hyperplasia seen as
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black spot
bone spicules chorioretinal scars |
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can RPE hyperplasia cause VA/VF loss
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yes
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RPE hyperplasia signifies
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atrophy of the RPE
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lesions that have their outline and color altered are what type and located where
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choroidal lesions
located under the RPE thus obstructed due to all the pigmentation |
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lesions that are dark and well circumscribed are what type and located where
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RPE hypertrophy and hyperplasooa
RPE is located under the clear retina |
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cysts located in OPL that are hazy gray and stippled; precursor to retinoschisis development and lamellar holes
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typical cystoid degeneration
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cysts located in NFL that are well demarcated and can give rise to full thickness breaks
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reticular cystoid degeneration
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cystoid degeneration is typically found
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temporally
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represents loss of choriocapillaris and atrophy or RPE and outer retinal layers can see choroid and sclera underneath
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primary chorioretinal atrophy AKA cobblestone/pavingstone degeneration
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cobblestone degeneration is common in which pts
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blonde fundi
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where is cobblestone degen located
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IT
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grannular pigmentation btw ora and equator seen in pts over 40 and increases with age
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peripheral tapetochoroidal degeneration
AKA peripheral senile pigmentary degeneration |
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what is peripheral tapetochoroidal degeneration
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degen and loss of pigment granules in RPE - loss of PR and thickening of Bruch's
looks like RP |
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located at posterior pole and represents myelination
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myellinated NF
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calcium salts/cholesterol crystals located in the vitreous that is benign and asymptomatic
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asteroid hyalosis
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age at which vascular dz becomes prevalent
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65 except in DM
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location of most retinal dz
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OPL
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