Fig. 4

Test locations for perimetry. The same 21 locations will be used for 3 test paradigms, the Humphrey Field Analyzer (for photopic sensitivity) and two-color dark-adapted microperimetry (cyan 505 nm, red 627 nm) using the MAIA-S. Perimetry will be tested in one eye only (the eye undergoing testing for RMDA tested at 5° and 12°). Targets are 0.43° in diameter (Goldmann III). Locations were chosen to sample closely near the fovea, where cell densities change rapidly with eccentricity and an effect of Bruch’s membrane lipidization is expected. In addition, targets in perifoveal and paramacular locations are included where rod density is high and subretinal drusenoid deposit is expected