preferred_name: Reduction in cone densities at 2 to 8 degrees horizontally from foveal center
preferred_name_lc: reduction in cone densities at 2 to 8 degrees horizontally from foveal center
label: Reduction in cone densities at 2 to 8 degrees horizontally from foveal center
label_lc: reduction in cone densities at 2 to 8 degrees horizontally from foveal center