The macula OCT: An Overview

madhusudan davda

Superspeciality Retina Care Centre

to check if there is a pathology: unexplained DOV, media haze (pre cataract), as routine work up for MFIOLs

document a clinical pathology? ERM, FTMH

follow up : post treatment in cases CSME, ARMD…

prognosticate a disease : almost all pathologies

Why do we want an OCT?

What to look for in an OCT?

What OCT is it? macula, ONH, RNFL anterior

What is the scan Type: raster lines, macular cube, radial

study the overall report starting from name, date, signal strength etc

check the demographicscheck the scan typecheck the signal strengthcheck the thickness mapcheck the subfield thicknessread the actual OCT imagecheck the scan directionstudy different layerscheck for missing zonestake multiple scans using

different protocolsclinically examinereport the scan

always see the whole scan, scroll through

questions to be askedis there a pathology?

what is the level at which it is?

what are the morphologic changes visible?

can we predict duration & prognosis?

is the disease active/inactive?

Normal OCT: layers

Normal OCT: zones

The normal OCTvitreous

vitreo retinal interface

neurosensory retina

retinal pigment epithelium

choroid

Vitreous

Vitreous

Vitreous

vitreo retinal interface

vitreo retinal interface

vitreo retinal interface

vitreo retinal interface

vitreo retinal interface

Neurosensory retina: inner retina

Neurosensory retina: outer retina

spongiform CSME

csme: predominantly cystoid

csme: predominantly cystoid

vein occlusions: BRVO

vein occlusions: CRVO

RPE

Pre RPE CNVM

Sub RPE CNVM

myopic cnvm

ILM

predict prognosis

– team merc

“Thank you”

–myself

“ you are here not because of me, rather I stand here because of all of

you”