2026-06-26T09:44:52Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/1069182025-03-18T12:03:59Zcom_20.500.14352_14col_20.500.14352_20

00925njm 22002777a 4500 dc Navarro Valls, J.J. author Chamorro Gutiérrez, Eva author García Rojo, M. author Langa Moraga, Antonio author Bonnin Arias, Cristina Natalia author Sánchez Ramos, Celia author 2013-04-21 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. https://hdl.handle.net/20.500.14352/106918 Diffuse Illumination Device to Improve Mesopic Contrast Sensitivity in Drivers.