Table 1 General information and the index of tear film

Age (years)^a

7.49±2.95

7.93±2.61

0.460

Blinking rate^a

14.65±3.77

31.5±8.69

<0.001

Incomplete blinking rate^a

13.26±8.02

23.86±12.58

<0.001

VDTt (hours)^a

1.04±0.88

2.69±0.91

<0.001

FL^b

1.347

1.000

I

42(98%)

41(93%)

II

0(0%)

1(2%)

III

1(2%)

2(5%)

BUT(s) ^a

6.43±2.68

4.29±2.43

-

<0.001

TH (mm) ^a

0.23±0.07

0.18±0.07

-

0.002

AVG^a

69.70±22.43

43.34±13.22

-

<0.001

MIN^a

61.40±22.77

38.66±12.85

-

<0.001

MAX^a

80.35±21.33

54.45±15.14

-

<0.001

OPI^a

1.56±0.76

2.19±1.21

-

0.004

Age (years)^a

8.18±2.27

8.38±3.41

0.759

Blinking rate^a

14.55±4.27

28.35±5.92

<0.001

Incomplete blinking rate^a

14.70±6.22

23.55±10.20

<0.001

VDTt (hours) ^a

1.01±1.03

2.24±1.21

<0.001

FL^b

0.732

0.753

I

35(87.5%)

37(92.5%)

II

3(7.5%)

2(5%)

III

0(0%)

0(0%)

IV

2(5.0%)

1(2.5%)

BUT(s) ^a

6.06±2.60

5.34±2.80

-

0.236

TH (mm) ^a

0.20±0.08

0.19±0.07

-

0.815

AVG^a

71.78±21.87

52.50±19.20

-

<0.001

MIN^a

66.40±21.84

46.90±18.82

-

<0.001

MAX^a

82.23±21.43

64.73±23.62

-

0.001

OPI^a

1.51±0.86

2.52±1.52

-

0.001