Figure 5.

Comparison of the spatial distribution of the AF determined in the current study using the SLO (Exc.: 488 nm; thick lines, filled symbols) and by fluorophotometry (Exc.: 550 nm; interrupted lines, open symbols) in a previous study.²⁰ The values are plotted as a function of distance from the fovea along the nasal (N,n) to temporal (T,t) and superior (S,s) to inferior (I,i) axes (linear scale). Data were normalized to the average value at approximately 8.5° from the fovea (center location of the middle ring) (qAF_i/qAF₈). The profiles measured in this study are affected by macular pigment absorption, whereas those measured previously were not. qAF values were determined within a 30° SLO field.