Figure 1: Schema of the different characteristics manually measured in each case. 1. Extension of the choroidal thinning in the horizontal axis (distance between both the nasal –N- and the temporal –T- limit of the scleral bulge); 2. Minimum choroidal thickness (CT) at the apex of the scleral bulge (A); 3. Scleral elevation at the level of minimum CT; 4. Subfoveal CT; 5. Maximum temporal CT, 6. Distance from the point of minimum CT to the temporal edge of the optic nerve (ON). 7. Distance from the point of minimum CT to the foveola (F); and 8. Distance of the nasal limit of the choroidal thinning to the foveola.