Paper Title
Anterior Segment Oct -Image Analysis of Corneal Opacities of Different Grades & Depth

Abstract
Purpose - To quantify the sagittal extent of corneal scarring as a function of corneal thickness by image analysis of Anterior Segment Optical Coherence Tomographic (AS-OCT) images of the cornea. Method - This is an observational study which included 3 eyes with corneal scars. Anterior segment OCT was performed centered on the scar with a 3mm cruciate protocol. The anterior and posterior limits of the scar wasdileneated using signal intensity measures and standardized cut-offs. Result - The Ant and posterior limit of the scar was found to be at 119.6µm and 215µm. The normative data published in other studies was used to guide the cut-off value Conclusion - Anterior segment OCT images and their mathematical quantification by image analysis can be used to delineate specific areas of the cornea that has lost its normal transparency. This innovative concept has translational implications in choosing the type of corneal transplant, which is the treatment modality for this condition. Keywords - Image processing, OCT, corneal scarring