Figure 1

An example of the peri-lesional area of an area of atrophy. The peri-lesional area is represented by the green outline which corresponded to 1 degree of visual angle from the boundaries of the area of atrophy.

An example of the peri-lesional area of an area of atrophy. The peri-lesional area is represented by the green outline which corresponded to 1 degree of visual angle from the boundaries of the area of atrophy.