Table 3 The mean orthoptic measurements at each follow-up points

 pretreatment

1.59 ± 1.05

1.64 ± 1.29

0.254

 1 month

1.59 ± 1.05^#

1.64 ± 1.29^##

0.254

 3 months

1.34 ± 1.08^#

1.54 ± 1.29^##

0.342

 6 months

1.34 ± 1.08^#

1.48 ± 1.25^##

0.271

 12 months

1.43 ± 1.12^#

1.42 ± 1.25^##

0.353

 pretreatment

5.37 ± 1.65

5.60 ± 1.50

0.569

 1 month

3.70 ± 1.26^*

5.50 ± 1.43^##

< 0.01

 3 months

2.38 ± 0.98^*

5.67 ± 1.30^##

< 0.01

 6 months

2.17 ± 1.00^*

5.76 ± 1.28^##

< 0.01

 12 months

1.75 ± 1.18^*

5.72 ± 1.28^##

< 0.01

 pretreatment

27.80 ± 7.48

27.46 ± 7.60

0.865

 1 month

22.80 ± 7.50^*

27.80 ± 8.14^##

0.017

 3 months

22.72 ± 7.62^*

28.03 ± 8.16^##

0.012

 6 months

22.55 ± 7.62^*

28.83 ± 8.23^##

0.004

 12 months

22.46 ± 7.61^*

27.48 ± 7.24^##

0.014

 pretreatment

25.13 ± 6.84

26.46 ± 8.08

0.493

 1 month

16.93 ± 7.09^*

26.76 ± 8.19^##

< 0.01

 3 months

16.37 ± 6.11^*

27.00 ± 8.20^##

< 0.01

 6 months

16.13 ± 5.87^*

26.66 ± 7.63^##

< 0.01

 12 months

16.25 ± 7.03^*

26.72 ± 7.41^##

< 0.01

 pretreatment

2.14 ± 0.46

2.19 ± 0.44

0.717

 1 month

1.97 ± 0.33^*

2.19 ± 0.44^##

0.03

 3 months

1.96 ± 0.29^*

2.19 ± 0.44^##

0.021

 6 months

1.95 ± 0.28^*

2.17 ± 0.42^##

0.017

 12 months

1 .91 ± 0.26^*

2.16 ± 0.42^##

0.01