1. OPTICAL
COHERENCE
TOMOGRAPHY

2. instrument that can perform cross sectional
image of biological tissue within less than 10
micron axial resolution using light waves.

3. CIRRUS OCT
SPECTRALIS
3D OCT

4. Reference
beam
Probe beam

5. LAYER REFLECTANCE
CHARACTERISTICS
ASSOCIATED ANATOMICAL
STRUCTURE
Inner limiting membrane Hyperreflective Basement membrane of Muller’s cell
Nerve fiber layer Hyperrelective Axons of retinal ganglion cell
Ganglion cell layer Hyporeflective Retinal Ganglion cell
Inner plexiform layer Hyperreflective Synaps bipolar cells & ganglion cell
Inner nuclear layer Hyporeflective Cell bodies
Outer plexiform layer Hyperreflective Synapses
Outer nuclear layer Hyporeflective Cell bodies (Rods & Cones)
Outer limiting membrane Hyperreflective Mullers cell epical villi
Elipsoid zone Hyperreflective Mitochondria-outer portion of inner segment
of photoreceptors
Inter digitation zone Hyperreflective Between cone outer seg.-RPE microvili
RPE-Bruch’s complex Hyperreflective RPE & Bruch’s membrane
Choroid Hypo-Hyperreflective Choriocapillaries

7. ◦ NERVE FIBER
LAYER

8. NFL
GCL
IP
L
INL OPL ONL
EL
M
EZ IDZ RPE-BM
Choreocapillaries Satttler’s layer
Haller’s layer

10. RED, YELLOW
BLUE, BLACK