Figure 1: The relationship between severity of early AMD and ROS within the central 5° of the retina, including fixation. AMD: Age-Related Macular Degeneration; ROS: Retinotopic Ocular Sensitivity. AMD severity group defined as: group 1=grades 1 and 2; group 2=grades 3 and 4; group 3=grades 5 and 6; group 4=grades 7 and 8.