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Table 3 Factorial coordinates of ReSTOR® and mono-focal mean scores considering factors 1 and 2

From: Patient-reported benefit of ReSTOR® multi-focal intraocular lenses after cataract surgery: Results of Principal Component Analysis on clinical trial data

  

Mono-focal (N = 173) Mean ± SD

ReSTOR® (N = 499) Mean ± SD

p values

Factor 1: Visual functioning and patient satisfaction

At baseline

5.91 ± 5.15

5.39 ± 4.52

0.2451

 

After 1st eye surgery

-0.51 ± 4.56

-1.41 ± 4.14

0.0166

 

After 2nd eye surgery

-3.86 ± 2.63

-4.52 ± 2.78

0.0067

Factor 2: Independence from glasses

At baseline

-0.50 ± 2.53

-0.74 ± 2.41

0.2647

 

After 1st eye surgery

0.22 ± 2.03

0.54 ± 1.73

0.0646

 

After 2nd eye surgery

-0.52 ± 1.53

0.47 ± 0.86

<0.0001

  1. † p values correspond to t-tests.