The link is to a poster presentation made at the last meeting of Association for Research in Vision and Ophthalmology (ARVO) by Dr. Nalin Mehta. The title (shortened) is Evaluation of Choroidal Circulation Using Collapsed C-Scan Imaging. The goal is “to better differentiate between the various components and sub-types of age-related macular degeneration”. Further:

En face (C-scan) OCT images, collapsed and summated in the antero-posterior axis, were acquired for all patients over approximately monthly intervals throughout their treatment regimen. These images were standardized and analyzed using Pixcavator 3.1 (Intelligent Perception Co., Huntington, WV), an image analysis program which first captures the contours of the choroidal vascular pattern, differentiating the same from background scatter phenomenon, and then quantifies this pattern in proportion to the entire scanned area, producing an Excel (Microsoft Corp., Sacramento, CA) spreadsheet with locations and measurements of these vascular structures.

Before this became possible some challenges of image analysis had to be confronted: article in the wiki.