Anterior Segment OCT€¦ · 3/15/2016 1 PDR Pre and Post laser Jan 2012 20/30 Aug 2012 20/50 No...
Transcript of Anterior Segment OCT€¦ · 3/15/2016 1 PDR Pre and Post laser Jan 2012 20/30 Aug 2012 20/50 No...
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PDR Pre and
Post laser
Jan 2012 20/30 Aug 2012 20/50 No subj comp.
Anterior Segment
• Penetrating Corneal FB
Post-op
Anterior Segment OCT
ONH on OCT
ONH Drusen
Bergmeister’s
Papilla
Optic Pit
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ONH-Papilledema
Young Obese Female
Pseudotumor Cerebri
Interpretation and Diagnostic Abilitiese.g., Glaucoma (Conventional Method)
Manual Examination of
Integrity or Changes
ONH- RNFL Converges to Exit the Eye!
Density of NFL relative to proximity to the ONH
>400um 1572um
Interpretation and Diagnostic Abilitiese.g., Glaucoma
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RNFL
PPA
Termination of BM
BMO
Posterior Ciliary Artery
BM
RPE
Peripapillary Atrophy
RNFL
BMOScleral Canal
Tilted Disc (GL dilemma)
Glaucoma not only cause of Inner Retinal Atrophy
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One month follow-up
Posterior Segment
Posterior Pole-Peripheral Conditions
• Vitreous
• Vitreoretinal Interface
• Inner-Retina
• Outer-Retina
• Retinal Pigment Epithelium
• Choroid
Vitreous • Posterior Pole
– Peripapillary and Perimacular
– Peripheral
Evolution of Vitreous in Posterior Pole
11/21/20111/18/2011 8/21/2012
Scan Orientation
Fibrils
Vitreous Peripheral Retina
Vitreoretina Tuft
Lattice Degeneration
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Vitreomacular Interface
• VMA
VMT
Spontaneously Improved
Other Examples
TRD
MH (Partial- Full-thickness)
Peripheral Retinal Holes
Localizing Lesions RRD vs. Retinoschisis
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Macula Off RRD
RRD-Macula On (Inferior)
Vitreous Haze
Epimacular Membrane
Single layer vs overall assessment
Epiretinal Membrane
Vitreo-retinal
Pre-retinal Hemorrhage
Localizing Lesions
Intraretinal hemorrhages
Inner and Outer-segment
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Localizing Lesions Subretinal Hemorrhage
Hemorrhagic PED
Localizing Lesions (Choroidal Nevus)
Localizing Lesions (Choroidal Nevus)
Choroidal Tumor
Localizing Lesions (CHRPE)
Posterior Segment Pathology
• Infectious Conditions
– Toxoplasmosis (Retinochoroiditis)
– Histoplasmosis (Chorioretinitis)
• Although Both are referred to as Chorioretinitis
Toxoplasmosis
Vit. Cells
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20/40
Conditions of Inner-Retina
Recurrence
OHS (Early)
B
A
B
C
D
C
A
AD
OHS (Late) Punched out lesion!
CNV
SRF
73 Y/O WF recent onset vision loss, referred for AION
No temporal HAs, No Jaw Claudication, Fairly Good Health
AMD
Small Drusen
Intermediate
Large
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AMD
Pigment Abbormalities
AMD
Geographic Atrophy
AMD GA
AMD-CNV
AMD-CNV
Atrophic AMD PT
Converts to Wet
And treated
AMD-RPE Tear
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CNV Other Etiology
During her pregnancy
refused treatment
Idiopathic Received Treatment
Myopic Degeneration
Thin Choroid
Myopic Contour, CNV
P TX
Diabetic Retinopathy
Diabetic Retinopathy
Long Scan Line
Lowers Res
Scan Line Through the MA Below the MA
Diabetic Retinopathy
Progression
Over 3 months
Shorter Scan Line Better
Resolution
2 months later
NPDR
4 Monthly Scans Spontaneous Closure of MA
Resulting in reduced ME
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PDR-NV
Retinal Vessels
Posterior Vitreous Cortex
Vessel Walls
Possible vessel wall in vitreous space
Invasion of retinal vessel to retinal surface
PDR
PDR-VH
Shadow