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. Author manuscript; available in PMC: 2014 Sep 3.
Published in final edited form as: Ophthalmology. 2013 Mar;120(3):644–644.e2. doi: 10.1016/j.ophtha.2012.09.052

Figure 2.

Figure 2

Restricting the optical coherence tomography image data to the vicinity of the retinal pigment epithelium (RPE) layer for generating the restricted summed-voxel projection (RSVP). The bottom red curve is the baseline of the normal RPE layer. The top red curve is determined by the largest drusen height in all of B-scans. The RSVP thus excludes extraneous portions of the retina that may contain noise to the projection, such as those caused by the vitreous, retinal nerve fiber layer (RNFL), and choroid.