Posterior Segment2660021169012 Rev. A 2017-12 CIRRUS HD-OCT User Manual8-40The summary box reports progressive change as one of “Possible Loss” (yellow), “LikelyLoss” (red), or “Possible Increase” (lavender). “Possible Loss” means progressive loss hasbeen detected once. “Likely Loss” means it has been confirmed by consecutive follow–upexaminations. Shown below is an example of a summary box display.The yellow checkmark by GCL + IPL Thickness Map Progression indicates “Possible Loss,”while the red checkmark by the GCL + IPL Thickness progression indicates “Likely Loss.”Were any improvement indicated, a lavender checkmark would appear beside one of thetwo progression options.Ganglion Cell Guided Progression Analysis is also available in Manual Selection ("ManualSelection" on page 8-12)..