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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: Optom Vis Sci. 2016 Jul;93(7):720–730. doi: 10.1097/OPX.0000000000000869

Figure 1.

Figure 1

Scatterplot of SD vs. average area for measurements of all 65 Isopter Group (IG) areas. The solid line is the line of best fit as determined by the least squares method. The area between the dashed lines represents the 95% confidence interval of this regression line. The line of best fit, on the log-log scale, has an intercept of −0.74, slope of 0.43, and R2 value of 0.67. This relationship can be represented as SD ≈ 10−0.74area0.43 ≈ 0.18area0.43.