Dependent variable R value P value Age 0.331 0.001* Duration of glaucoma 0.457 <0.001* BCVA    -0.396 <0.001* Cup-disc ratio 0.028 0.770 Visual Field parameters MD 0.117 0.240 PSD 0.495 <0.001*  RNFLT     Superior -0.595 <0.001* Nasal -0.521 <0.001* Inferior -0.637 <0.001* Temporal -0.457 <0.001* GC-IPL thickness Superior -0.677 <0.001* Superiortemporal -0.676 <0.001* Superiornasal -0.684 <0.001* Inferior -0.717 <0.001* Inferiortemporal -0.770 <0.001* Inferiornasal -0.676 <0.001* *Statistically significant BCVA: Best corrected visual acuity; MD: Mean deviation, PSD: Pattern standard deviation; RNFLT: Retinal nerve fiber layer thickness; GC-IPL: Ganglion cell-inner plexiform layer.

Table 3: Correlation of PCT measurements with age, duration of glaucoma, BCVA, Cup-disc ratio, Visual field parameters (MD, PSD), RNFLT and GC-IPL thickness.