OCT Interpretation

Overview

Optical coherence tomography (OCT) provides high-resolution cross-sectional imaging of the retina. Spectral-domain OCT (SD-OCT) and swept-source OCT (SS-OCT) are the current clinical standards. Interpretation involves recognizing patterns of structural change across retinal layers.

Mechanism / How It Works

• Details to be added from dedicated source — principles of low-coherence interferometry, TD vs SD vs SS, resolution, scanning protocols, segmentation

OCT in Retinal Arterial Macroaneurysm

From the RAM source:

• SD-OCT is useful for quantifying exudation in exudative-type macroaneurysms
• Can show intraretinal fluid, subretinal fluid, hard exudates, and structural changes from hemorrhage at various retinal levels
• Helps monitor treatment response

Key OCT Patterns (to be expanded)

• CME (cystoid macular edema)
• SRF (subretinal fluid)
• PED types (serous, fibrovascular, drusenoid)
• SHRM (subretinal hyperreflective material)
• HRF (hyperreflective foci)
• ELM/EZ disruption
• DRIL (disorganization of retinal inner layers)

Related

• fluorescein-angiography — complementary imaging
• retinal-arterial-macroaneurysm — OCT quantifies exudation

Sources

• macroaneurysm-eyewiki (OCT role in RAM only)

Gap: Major gap. OCT interpretation is fundamental to retina practice. Needs comprehensive sourcing on technique, layer-by-layer anatomy, and disease-specific patterns.