Figure 8From: Designing and testing scene enhancement algorithms for patients with retina degenerative disorders Sample of the simulated image using the Pelli Robson's contrast sensitivity test. The size of scotoma here is equivalent to the same size of macula. The contrast of object is 1.8 with eccentricity of 12.74 mm from the macula's centre. The arrows show the direction of eccentricity (E) from the macula's centre and the diameter (D) of the scotoma (which equals to the macula's diameter here).Back to article page