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. 2006 Apr;90(4):472–479. doi: 10.1136/bjo.2005.082487

graphic file with name bj82487.f4.jpg

Figure 4 Dimensions of the mfERG stimulus array (A); mean eccentricity was measured horizontally to the centre of hexagonal stimulus elements arranged concentrically in one of four rings. Comparison of AF ring radius with the maximum mean eccentricity associated with normal mfERGs (B).