%0 Generic
%A Navarro Valls, J.J.
%A Chamorro Gutiérrez, Eva
%A García Rojo, M.
%A Langa Moraga, Antonio
%A Bonnin Arias, Cristina Natalia
%A Sánchez Ramos, Celia
%T Diffuse Illumination Device to Improve Mesopic Contrast Sensitivity in Drivers.
%D 2013
%U https://hdl.handle.net/20.500.14352/106918
%X Purpose: To evaluate the influence of a diffuse illumination device located outside the " eld of vision that provokes a controlled pupillar miosis, on the contrast sensitivity in drivers tested in mesopic conditions.Method: Cross-sectional prospective observational study in which contrast sensitivity by Pelli-Robson Test (CS) was evaluated in 49 drivers under 40 years old and 60 drivers over 40. The study was carried out in a simulated setting for night driving with and without the interposition of the diffuse illumination device. The mesopic contrast sensitivity was measured in the absence or presence of glare.Results: In both age groups, a statistically signi" cant improvement of contrast sensitivity was exhibited. In drivers aged over 40, baseline (BS) Pelli-Robson contrast sensitivity scores were: BS=0.83±0.3 and BSg=0.59±0.3 in absence and in presence of glare, whereas values for the interposition of diffuse illumination device (D) were: D=0.93±0.3 (p<0.05) and Dg=0.62±0.3 (p<0.05). On the other hand, in drivers aged under 40, baseline contrast sensitivity values were: BS=1.09±0.2 and BSg=0.95±0.3 whereas the interposition of the mentioned system showed the following values: D=1.27±0.3 (p<0.05) and Dg=1.11±0.3 (p<0.05).Conclusion: Using a diffuse illumination device in the interior of the vehicle provides significant improvement in contrast sensitivity.
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