To begin the Optical Coherence Tomography, or OCT image analysis, open the system software. Navigate to the measuring tool section, and click on the View B-Scans icon. Then within the measuring tools, select the Distance tool to measure the maximal epithelial and subepithelial thickness values of the lesion.
Do so by choosing an initial point on the anterior epithelium boundary. Then move vertically to the visible separation between the epithelial and subepithelial layers. Save the maximal area measurement data as Epithelial Thickness.
Next, select an anchor point on the visible separation between the epithelial and subepithelial layers, and proceed vertically to the posterior border of the lesion, which is typically the anterior boundary of the sclera. Save the maximal area measurement data as Subepithelial Thickness. Utilizing the Snapshot Tool icon, export a JPG image of the measurement report screen.
