Table 4 Comparison of astigmatism of chalazion

Control group

0.68 ± 0.53

< 0.0001

Chalazion group^a

0.90 ± 0.65

 Control group

0.68 ± 0.53

 Lateral-upper eyelid

0.79 ± 0.64

 Middle-upper eyelid^a

0.95 ± 0.59

0.001

 Medial-upper eyelid^a

0.93 ± 0.76

0.005

 Lateral-lower eyelid

0.64 ± 0.41

 Middle-lower eyelid

0.74 ± 0.52

 Medial-lower eyelid^a

1.04 ± 0.95

0.022

 Control group

0.68 ± 0.53

 Small (<  3 mm)

0.53 ± 0.46

 Medium (3–5 mm)^a

0.90 ± 0.61

0.001

 Large (> 5 mm)^ab

1.19 ± 0.88

0.000, 0.032

 Control group

0.68 ± 0.53

 Single

0.86 ± 0.66

 Muitiple^a

1.00 ± 0.62

0.000

 2^a

1.01 ± 0.61

0.000

  ≥ 3^a

0.96 ± 0.65

0.015