Table 1.

Comparison of baseline and 3-months post laser data between groups using Independent samples t-test and intragroup using student t-test

Parameter	Baseline (mm; mean±SD)			3-months follow-up (mm; mean±SD)			Intragroup comparison: Baseline vs. 3 months
	Barrage laser (n=19)	Standard laser (n=19)	P	Barrage laser (n=19)	Standard laser (n=19)	P	Barrage Laser P (n=19)	Standard laser P (n=19)
Disc fovea distance	4.532±0.591	4.392±0.696	0.421	4.602±0.632	4.274±0.616	0.113	0.415	0.317
Fovea ridge distance	8.158±1.972	9.192±1.64	0.087	8.484±2.02	9.137±1.753	0.294	0.098	0.801
Disc ridge distance	12.726±2.18	13.585±1.965	0.21	13.086±2.37	13.421±2.05	0.645	0.125	0.585
IAD at 2DD	7.049±1.26	7.188±1.054	0.714	6.439±1.41	7.111±1.085	0.109	0.001	0.449
IAD at 4 DD	8.297±1.39	8.486±1.145	0.65	7.49±1.56	7.724±1.244	0.613	0.0004	0.0001
IAA at fovea* (degrees)	94.89±13.52	96.561±7.784	0.643	89.282±16.59	94.588±8.876	0.227	0.004	0.041

IAD – Inter-arcade distance, IAA – Inter-arcade angle, DD – Disc diameters; *Inter-arcade angle measured in degrees, rest measurements in millimeters. Data analyzed using Independent samples t-test and student t test