Table 2 Comparison between UCVA and corrected distance visual acuity according to far 6 m, intermediate 70 cm and near 40 cm (Decimal) Snellen Equivalent meter 6/ (n = 34)

 Min. – Max. (Decimal)

0.50–1.0

0.60–1.20

9.50^*

< 0.001^*

 Min. – Max. Snellen Equivalent (Feet)

40–20

33–16

 Mean (Decimal) ± SD.

0.80 ± 0.16

0.91 ± 0.15

 Mean Snellen Equivalent (Feet)

25

22

 Median

0.80

0.90

 Min. – Max. (Decimal)

0.32–1.58

0.32–1.26

2.359^*

0.024^*

 Min. – Max. Snellen Equivalent (Feet)

63–12.5

18.9–16

 Mean (Decimal) ± SD.

0.82 ± 0.31

0.77 ± 0.27

 Mean Snellen Equivalent (Feet)

25

26

 Median

0.79

0.79

 Min. – Max. (Decimal)

0.32–1.26

0.32–1.26

2.776^*

0.009^*

 Min. – Max. Snellen  Equivalent (Feet)

63–16

63–16

 Mean (Decimal) ± SD.

0.87 ± 0.20

0.80 ± 0.22

 Mean Snellen Equivalent (Feet)

23

25

 Median

0.79

0.79