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Table 3 Rapidity of adaptation to progressive lenses in periods 1 and 2.

From: The VEPRO trial: A cross-over randomised controlled trial comparing 2 progressive lenses for patients with presbyopia

Sequence

Faster adaptation for the lens

of period 1 (immediate or few hours)

No difference

Faster adaptation for the lens of

period 2 (immediate or few hours)

TOTAL

 

N

N

N

N

New-generation lens then older-generation lens

14

35

12

61

Older-generation lens then new-generation lens

5

39

19

63

TOTAL

19

74

31

124

  1. Patients had fast adaptation if they answered that the adaptation was immediate or in a few hours. Patients were considered as having a long adaptation if they answered that the adaptation was more than few hours.
  2. Prescott 2-tailed test: p = 0.0315
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Trials

ISSN: 1745-6215