Table 2

Morphometric optic disc data (mean (SD))

Normal groupOcular hypertensive groupp Value Glaucoma groupp Value
Number527100202
Ratio inferior to temporal rim width1.67 (0.53)1.48 (0.53)0.00021.38 (0.57)<0.0001
Ratio superior to temporal rim width1.56 (0.49)1.41 (0.43)0.0041.38 (0.51)<0.0001
Neuroretinal rim width (mm)
Inferior0.47 (0.12)0.35 (0.10)<0.00010.32 (0.12)<0.0001
 Superior0.44 (0.12)0.34 (0.10)<0.00010.31 (0.11)<0.0001
 Temporal0.30 (0.10)0.25 (0.08)<0.00010.24 (0.09)<0.0001
Optic disc area (mm2)2.76 (0.63)2.70 (0.56)0.49 (NS) 2.68 (0.59)0.17 (NS)
Horizontal cup to disc ratio0.61 (0.13)0.67 (0.11)<0.00010.69 (0.10)<0.0001
Vertical cup to disc ratio0.54 (0.13)0.65 (0.10)<0.00010.67 (0.11)<0.0001
Ratio vertical to horizontal disc diameter1.08 (0.09)1.08 (0.09)0.63 (NS)1.08 (0.09)0.41 (NS)
  • p Value=significance of difference between the preceding group and the normal group; NS=statistically not significant.