This represents summary data referring to the measurement of the RNFL from the Circular Tomogram. The average of all of the individual points measured is displayed along with a statistical analysis comparing the symmetry of the right and left eye. While not pathognomonic, asymmetry of the RNFL is a common feature of early-onset Glaucoma. The Tabular Data display also uses a background color to denote the statistical significance of this number.