Table 2 Optic disc topographic changes of group 1 and group 2.

	Group 1	Group 2	p Value:
Mean cup volume (SD)	0.097±0.11 mm3	0.05±0.021 mm3	p<0.0001
Mean rim volume (SD)	0.403±0.21 mm3	0.38±0.1 mm3	p = 0.03
Mean cup area (SD)	0.417±0.31 mm2	0.39±0.19 mm2	p = 0.021
Mean disc area (SD)	1.912±0.47 mm2	1.871±0.48 mm2	p = 0.01
Mean cup depth (SD)	0.172±0.08 mm	0.129±0.05 mm	p = 0.017
Mean cup/disc (SD)	0.218±0.08	0.208±0.06	p = 0.148