08 - Macular OCT

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39 Terms

1
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ILM
NFL
GCL
IPL
INL
OPL
ONL
ELM
PR
RPE

What are the 10 main retinal layers, from inner to outer?

<p>What are the 10 main retinal layers, from inner to outer?</p>
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BM of RPE
inner collagen layer
middle elastic layer
outer collagen layer
BM of choriocapillaris

What 5 sublayers make up Bruch's membrane?

<p>What 5 sublayers make up <strong>Bruch's membrane</strong>?</p>
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outer segments (dark)
PIL aka cilium of OS-IS junction (light)
inner segments (dark)

What is present in the photoreceptor layer?

<p>What is present in the <strong>photoreceptor layer</strong>?</p>
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zonula adherens between PR's and Muller cells

What makes up the external limiting membrane?

<p>What makes up the <strong>external limiting membrane</strong>?</p>
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nuclear = hypo
plexiform = hyper

A good rule of thumb is that nuclear layers are __________ while plexiform layers ______________.

<p>A good rule of thumb is that <strong>nuclear</strong> layers are __________ while <strong>plexiform</strong> layers ______________.</p>
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PR cell bodies

What makes up the outer nuclear layer?

<p>What makes up the <strong>outer nuclear layer</strong>?</p>
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PR synapses with bipolar and horizontal cells

What makes up the outer plexiform layer?

<p>What makes up the <strong>outer plexiform layer</strong>?</p>
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bipolar, horizontal, amacrine cell bodies

What makes up the inner nuclear layer?

<p>What makes up the <strong>inner nuclear layer</strong>?</p>
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bipolar, horizontal, amacrine cells synapse with ganglion cells

What makes up the inner plexiform layer?

<p>What makes up the <strong>inner plexiform layer</strong>?</p>
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ganglion cell bodies

What makes up the ganglion cell layer?

<p>What makes up the <strong>ganglion cell layer</strong>?</p>
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ganglion cell axons

What makes up the nerve fiber layer?

<p>What makes up the <strong>nerve fiber layer</strong>?</p>
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Muller cell footplates

What makes up the internal limiting membrane?

<p>What makes up the <strong>internal limiting membrane</strong>?</p>
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pigment migration and drusen underneath RPE (PED)

What is ARMD?

<p>What is <strong>ARMD</strong>?</p>
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lipofuscin will hyperAF

How does ARMD appear on FAF?

<p>How does <strong>ARMD</strong> appear on FAF?</p>
15
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PEDs beneath the RPE

How does ARMD appear on OCT?

<p>How does <strong>ARMD</strong> appear on OCT?</p>
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loss of RPE = hypoAF

How does ARMD geographic atrophy appear on FAF?

<p>How does <strong>ARMD geographic atrophy</strong> appear on FAF?</p>
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loss of RPE = hyperfluorescence undeneath in the choroid

How does ARMD geographic atrophy appear on OCT?

<p>How does <strong>ARMD geographic atrophy</strong> appear on OCT?</p>
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underneath RPE = elevation of RPE and retina
diffuse IVFA leakage in late phase

How does ARMD type 1 CNV appear on OCT and FAF?

<p>How does <strong>ARMD type 1 CNV </strong>appear on OCT and FAF?</p>
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on top of RPE = elevation of retina
early, defined IVFA hyperF

How does ARMD type 2 CNV appear on OCT and FAF?

<p>How does <strong>ARMD type 2 CNV </strong>appear on OCT and FAF?</p>
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loss of retina and RPE = hyperfluorescence undeneath in the choroid

How might myopic degeneration lacquer cracks appear on OCT?

<p>How might myopic degeneration <strong>lacquer cracks</strong> appear on OCT?</p>
21
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serous (dark) RD between PR's and RPE
+/- serous PED
+/- thicker choroid

How does acute CSR appear on OCT?

<p>How does <strong>acute CSR</strong> appear on OCT?</p>
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shaggy PR's, disrupted RPE

How does chronic CSR appear on OCT?

<p>How does <strong>chronic CSR</strong> appear on OCT?</p>
23
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outer retinal atrophy temporal to fovea
crystalline deposits
atrophic hole with ILM drape
+/- CNVM

How does type 2 macular telangiectasia appear on OCT?

<p>How does type 2 <strong>macular telangiectasia</strong> appear on OCT?</p>
24
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atrophy of capillary beds (OCTA)
atrophy of retinal layers

How does diabetic retinopathy appear on OCT?

<p>How does <strong>diabetic retinopathy</strong> appear on OCT?</p>
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cystic spaces
exudates after fluid resolves

How does diabetic macular edema appear on OCT?

<p>How does <strong>diabetic macular edema</strong> appear on OCT?</p>
26
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additional hyperF material on top of retinal layers

How does neovascularization and preretinal hemes appear on OCT?

<p>How does <strong>neovascularization and preretinal hemes</strong> appear on OCT?</p>
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acute = thick, ischemic, inflamed retina layers
chronic = thinned retina due to atrophy

How does BRAO and CRAO appear on OCT?

<p>How does <strong>BRAO and CRAO</strong> appear on OCT?</p>
28
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macular edema
neo
ischemic atrophy

How does BRVO and CRVO appear on OCT?

<p>How does <strong>BRVO and CRVO</strong> appear on OCT?</p>
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acute = superficial lesions in retina, vitreal haze
chronic = old scars in entire retinal thickness

How does toxoplasmosis retinitis appear on OCT?

<p>How does <strong>toxoplasmosis retinitis</strong> appear on OCT?</p>
30
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darkened area in choroid
+/- hyperF right below RPE

How does a choroidal nevus appear on OCT?

<p>How does a <strong>choroidal nevus</strong> appear on OCT?</p>
31
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outer retinal atrophy
RPE thicker
+/- lacunae with window defect (no RPE)

How does a CHRPE appear on OCT?

<p>How does a <strong>CHRPE</strong> appear on OCT?</p>
32
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loss of RNFL and GCC (thinning)

How does NAAION appear on OCT?

<p>How does <strong>NAAION</strong> appear on OCT?</p>
33
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missing area of retina above RPE

How does a retinal hole appear on OCT?

<p>How does a <strong>retinal hole</strong> appear on OCT?</p>
34
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lifting of retinal layers off of RPE

How does a retinal detachment appear on OCT?

<p>How does a <strong>retinal detachment</strong> appear on OCT?</p>
35
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retinal tissue above retinal layers

How does a retinal tuft appear on OCT?

<p>How does a <strong>retinal tuft</strong> appear on OCT?</p>
36
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separation within retinal layers

How does a retinoschisis appear on OCT?

<p>How does a <strong>retinoschisis </strong>appear on OCT?</p>
37
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blocking defect = retinal layers behind the condensation are darker

How does vitreal condensation appear on OCT?

<p>How does <strong>vitreal condensation</strong> appear on OCT?</p>
38
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vitreal interface lifts of retina
+/- ERM
+/- retinal hole
+/- schisis

How does VMT appear on OCT?

<p>How does <strong>VMT</strong> appear on OCT?</p>
39
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thickened ILM and pulling up on retinal layers

How does ERM appear on OCT?

<p>How does <strong>ERM</strong> appear on OCT?</p>