Analysis of Changes in Retinal Thickness in Type 2 Diabetes without Diabetic Retinopathy

Figure 2

The ten areas examined included the fovea, central foveal circle (diameter = 1 mm), parafoveal circle (diameter = 3 mm), and perifoveal circle (diameter = 6 mm). The parafoveal area and the perifoveal area were further subdivided into superior, inferior, temporal, and nasal subfields.