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Table 3 Toric intraocular lens alignment error changes over time (degrees, Mean ± SD)

From: Digital versus slit-beam marking for toric intraocular lenses in cataract surgery

Change

Digital Group

Manual Group

P value

arithmetic mean

 1 day postop

-0.06 ± 4.61

1.11 ± 2.61

0.357

  (range)

(-8 to 10)

(-3 to 5)

 

 1 week postop

-0.11 ± 4.13

1.00 ± 3.31

0.379

   (range)

(-6 to 11)

(-5 to 6)

 

 1 month postop

0.39 ± 4.38

1.00 ± 2.11

0.598

  (range)

(-6 to 12)

(-4 to 4)

 

 3 months postop

-0.94 ± 3.77

0.44 ± 3.07

0.234

  (range)

(-6 to 8)

(-6 to 6)

 

absolute mean

 1 day postop

3.50 ± 2.88

2.33 ± 1.53

0.141

  (range)

(0 to 10)

(0 to 5)

 

 1 week postop

3.00 ± 2.74

2.78 ± 1.96

0.781

  (range)

(0 to 11)

(0 to 6)

 

 1 month postop

3.17 ± 2.96

1.78 ± 1.48

0.083

  (range)

(0 to 12)

(0 to 4)

 

 3 months postop

3.06 ± 2.29

2.33 ± 1.97

0.317

  (range)

(0 to 8)

(0 to 6)

 
  1. SD standard deviation