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Table 2 Mean visual characteristics of older drivers before, after first and after second eye cataract surgery (n = 55)

From: First and second eye cataract surgery and driver self-regulation among older drivers with bilateral cataract: a prospective cohort study

Variable

Before surgery Mean (SD)

After first eye surgery Mean (SD)

After second eye surgery Mean (SD)

P value

Visual acuity (logMAR)a

 Better eye

0.18 (0.15)

0.10 (0.22)

0.00 (0.19)

< 0.001

 Worse eye

0.39 (0.24)

0.36 (0.26)

0.11 (0.19)

< 0.001

 Binocular

0.15 (0.15)

0.08 (0.21)

−0.02 (0.19)

< 0.001

Log contrast sensitivity (log units)b

 Better eye

1.57 (0.14)

1.62 (0.28)

1.68 (0.11)

< 0.001

 Worse eye

1.41 (0.29)

1.47 (0.27)

1.61 (0.13)

< 0.001

 Binocular

1.64 (0.14)

1.67 (0.25)

1.75 (0.08)

< 0.001

Stereopsis (log seconds of arc)a

 Binocular

2.14 (0.64)

2.31 (0.72)

1.96 (0.60)

0.002

  1. aLower scores represent better vision bHigher scores represent better vision log logarithm, logMAR logarithm of the Minimal Angle of Resolution, SD standard deviation