Before (n=21) 6 months (n=22) delta (n=21)
  r P* r P* r P*
Fovea 0.36 0.12 0.01 0.95 0.34 0.14
Parafovea            
Nasal 0.38 0.09 0.52 0.013 0.28 0.22
Temporal 0.27 0.24 0.14 0.54 0.24 0.29
Superior 0.25 0.28 0.39 0.08 0.16 0.48
Inferior 0.44 0.048 0.33 0.13 0.34 0.13
Peripfovea            
Nasal 0.27 0.25 0.49 0.03 0.09 0.71
Temporal 0.27 0.25 0.43 0.056 0.18 0.46
Superior 0.32 0.22 0.48 0.036 0.11 0.69
Inferior 0.37 0.16 0.42 0.07 0.02 0.94
*Pearson’s correlation coefficient test; Delta: preoperative mean retinal thickness – postoperative mean retinal thickness.
Table 4: Correlation between shortening of disc to fovea distance and retinal thickness in Stage 3 and 4.