Table 4.

 Follow up data of the study group patients and whole control group

Change in visual acuity	Study group	Control group	p Value*
1 week after baseline
Number	57	5
LogMar units	−0.09 (0.18)	−0.02 (0.04)	0.36 (NS)
Snellen lines	0.9 (1.9)	0.2 (0.4)	0.39 (NS)
Snellen acuity	0.04 (0.10)	0.01 (0.02)	0.51 (NS)
1 month after baseline
Number	64	19
LogMar units	−0.15 (0.28)	−0.01 (0.13)	0.006
Snellen lines	1.3 (2.6)	0.1 (1.3)	0.01
Snellen acuity	0.07 (0.12)	−0.01 (0.07)	0.01
2 months after baseline
Number	52	24
LogMar units	−0.16 (0.26)	0.00 (0.25)	0.009
Snellen lines	1.5 (2.6)	0.2 (1.7)	0.027
Snellen acuity	0.07 (0.12)	0.02 (0.08)	0.10 (NS)
3 months after baseline
Number	51	25
LogMar units	−0.19 (0.26)	0.09 (0.25)	<0.001
Snellen lines	1.8 (2.2)	−0.7 (1.9)	<0.001
Snellen acuity	0.07 (0.09)	−0.04 (0.10)	<0.001
4 months after baseline
Number	37	19
LogMar units	−0.16 (0.35)	0.02 (0.17)	0.004
Snellen lines	1.8 (3.1)	−0.2 (1.7)	0.006
Snellen acuity	0.10 (0.15)	−0.01 (0.07)	0.005
5 months after baseline
Number	29	14
LogMar units	−0.10 (0.25)	0.13 (0.20)	0.001
Snellen lines	1.0 (2.5)	−1.4 (2.0)	0.002
Snellen acuity	0.04 (0.10)	−0.08 (0.12)	0.001
6 months after baseline
Number	25	10
LogMar units	−0.06 (0.21)	0.15 (0.15)	0.003
Snellen lines	0.5 (2.1)	−1.5 (1.6)	0.004
Snellen acuity	0.03 (0.08)	−0.11 (0.13)	0.001
7 months after baseline
Number	18	16
LogMar units	−0.13 (0.28)	0.02 (0.17)	0.037
Snellen lines	1.5 (2.4)	0.2 (1.6)	0.029
Snellen acuity	0.07 (0.09)	−0.02 (0.07)	0.011
8 months after baseline
Number	20	13
LogMar units	−0.09 (0.33)	0.03 (0.14)	0.15 (NS)
Snellen lines	1.0 (3.3)	−0.2 (1.5)	0.18 (NS)
Snellen acuity	0.04 (0.16)	−0.02 (0.06)	0.17 (NS)

*Statistical significance of difference between study group and control group.

NS, statistically not significant. Results presented as mean (standard deviation).