Fig. 1: Schematic representation of individual central retinal thickness and low optical reflectivity ratio at the Central Subfield and its progression over the four visits.

The values are given in relation to the control group: Values within a normal range are depicted in green; 2SD increase is depicted in red; 1SD increase is depicted in yellow. Empty spaces indicate that reliable measurements could not be obtained in that specific visit due to insufficient image quality. CRT: central retinal thickness; LOR: low optical reflectivity.