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Table 1 Mean values for the disturbance index, pupil size and MTF-cutoff.

From: A visual test based on a freeware software for quantifying and displaying night-vision disturbances: study in subjects after alcohol consumption

 

PRE-

POST-

Goggles

p-value

VDI monocular

0.25 ± 0.15

0.39 ± 0.24

-

<0.001

VDI binocular

0.16 ± 0.08

0.26 ± 0.16

0.95 ± 0.05

<0.001

Pupil size (mm)

5.3 ± 0.9

5.6 ± 1.0

-

<0.001

MTF-cutoff (cpd)

40 ± 11

35 ± 12

-

<0.001

  1. Mean values for the visual disturbance index (VDI), monocular and binocular, under different experimental conditions before (pre) and after (post) alcohol consumption and wearing alcohol-impairment goggles (only binocular). Mean values of the pupil size and MTF-cutoff are also showed. Standard deviation included. Statistical analysis: paired-sample t-Test for means.