Purpose: The purpose of this study was to investigate how widespread visionrelated problems are with nightdriving in Sweden and how the use of filter glasses looks in relation to this.

Methods: Participants (n=339) were asked to answer a web-based questionnaire that dealt with questions related to nightdriving and filter glasses. The responses were then analyzed in Excel and SPSS using Mann-Whitney U test, Kruskal-Wallis H test, box plot and correlation.

Results: The survey showed statistically significant differences in the relation between glare compared to problems with driving at night. There were also significant differences with the need for filter glasses and how much these helped in relation to glare and nightdriving.  

Conclusion: In the study, most participants reported low to moderate problems when driving at night. Participants who experienced greater problems were fewer than those who did not experience any problems, or did not experience them as strongly. This study showed that there was a clear relationship between those who experienced the need for a solution when driving at night, such as filterglasses, and those who experienced problems with nightdriving. Since the study also showed a clear connection between problems when driving at night and the experiences of how filterglasses for night driving work, it would be wise to recommend filterglasses to those who feel the need for a solution.