Figure 2.

Possible contributions of the IZ to band 3. Top left: a diagram of the layers of the retina, with common nomenclature. Top center: an AO-OCT B-scan of the corresponding layers in log scale, with a magnified, linear scale view of band 3. Top right: Three hypothetical contributors to band 3: the contact cylinder consisting of the portion of RPE apical process that ensheaths the outer segment, the COST, and the portion of the apical processes that underlie the outer segment tip. Bottom: predicted optical characteristics of these three potential contributors.