Interocular Asymmetry of Foveal Thickness in Parkinson Disease
Figure 2
This figure shows interocular asymmetry in the average macular volume measured in the three “standard” (ETDRS) peri-foveal zones. The difference increases with zone diameter (5 mm) and reaches statistical significance only when the total macular volume (Zone 3) is compared (see Methods) between PD and control subjects.