r   p value RNFL thickness with HbA1c     All groups of NPDR 0.048 0.60a RNFL thickness with Oxidised LDL     All groups of NPDR -0.391 < 0.001b Mild NPDR -0.598 < 0.001b Moderate NPDR -0.268 0.07b Severe NPDR -0.199 0.25b aPearson correlation, bSpearman correlation, p value < 0.05(significant)

Table 3: Correlation of RNFL thickness with HbA1c and Oxidised LDL in NPDR.