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Table 1 Demographics and preoperative data of the study subjects

From: Comparison of intraocular lens power calculation formulas in patients with a history of acute primary angle-closure attack

 

APAC (n = 44 eyes)

 

Control (n = 60 eyes)

P value*

 

Mean ± SD

Range

 

Mean ± SD

Range

 

Age (Years)

64.6 ± 9.7

40–82

 

66.63 ± 6.29

52–82

0.220

AL (mm)

22.47 ± 0.84

20.26–24.01

 

23.42 ± 0.80

22.04–25.47

< 0.001

ACD (mm)

2.45 ± 0.32

1.94–3.23

 

3.12 ± 0.35

2.12–3.95

< 0.001

ACD/AL ratio (%)

10.91 ± 1.46

8.45–14.45

 

13.32 ± 1.41

8.87–15.51

< 0.001

Flat K (D)

44.16 ± 1.59

40.86–47.67

 

43.88 ± 1.34

40.71–47.94

0.332

Steep K (D)

45.31 ± 1.62

42.24–49.34

 

44.83 ± 1.42

42.35–48.77

0.116

Mean K (D)

44.74 ± 1.57

41.66–48.47

 

44.37 ± 1.36

41.77–48.36

0.200

WTW (mm)

11.57 ± 0.54

10.23–13.10

 

11.69 ± 0.41

10.63–12.60

0.809

  1. *T-test was used
  2. D = diopter; SD = standard deviation; APAC = acute primary angle closure; AL = axial length; ACD = anterior chamber depth; K = keratometry; WTW = white to white