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Synförmågans mätbarhet och inverkan på säker bilkörning: en litteraturstudie
Swedish National Road and Transport Research Institute, Traffic and road users, Human-vehicle-transport system interaction.
Swedish National Road and Transport Research Institute, Traffic and road users, Human-vehicle-transport system interaction.ORCID iD: 0000-0002-8243-419X
2015 (Swedish)Report (Other academic)Alternative title
Sight measurability and impact on safe driving : a literature review (English)
Abstract [sv]

I detta notat redovisas en litteraturstudie som ger en översikt över synförmågor som är viktiga för bilkörning. Forskarna konstaterar att de mest förekommande måtten på synskärpa inte är tillräckliga för att säkerställa säker bilkörning och att kognitiva tester kan komplettera bedömningen. Studien besvarar frågor om egenskaper i synen som är viktiga för säker bilkörning, vilka tester som finns och hur dessa används, samt vilken evidens som finns för olika tester. Totalt inkluderades 128 vetenskapliga publicering i litteraturöversikten. Flera olika ansatser till att mäta synförmågan i syfte att förbättra trafiksäkerheten har identifierats runt om i världen. En trend som setts är att traditionella syntester alltmer kompletterats med kognitiva tester. Resultaten ger en översyn av internationella krav på synförmågan som ställs för privata bilförare. Vidare presenteras resultat uppdelat utifrån olika synförmågor där dessa beskrivs tillsammans med en översikt av sjukdomar som kan påverka förmågan, vilka tester som finns och dess evidens, samt hur förmågan inverkar på säker bilkörning. Två tester lyftes fram utifrån starka stöd i litteraturen: (1) kontrastkänslighet och (2) Useful Field of View. Utifrån resultatet drogs slutsatsen att testning av synförmåga bör bestå av kompletterande tester, att de mest förekommande måtten på synskärpa inte är tillräckligt för att säkerställa säker bilkörning, samt att tester som inrymmer kognitiva aspekter kan komplettera bedömningen av synförmågan.

Abstract [en]

The purpose of this study was to provide an overview of vision abilities that are important for safe driving. Knowledge of measurability of vision and its impact on driving have proven to be important to secure a safe traffic system. Several different approaches to measure vision in order to improve road safety have been identified around the world. A trend seen is that the traditional vision tests more and more are supplemented by cognitive tests. The purpose of this study was to provide an overview of vision abilities that are important for safe driving. The study answered questions about vision abilities that are essential for safe driving, which tests are available and how they are used, and the existing evidence for these tests. In total 128 scientific publications were included in the overview. The results provide an overview of international standards of vision required for driving a car. Furthermore, the results were presented according to different vision abilities which are described along with an account of diseases that may affect the ability, which tests that are available and the evidence for these, and how the ability is important for safe driving. Two tests were highlighted based on the strong support found in the literature and these were (1) contrast sensitivity, and (2) Useful Field of View. Based on the results it was concluded that testing of vision should consist of several complementary tests, the most common measure, visual acuity that is, is not sufficient for safe driving, and that tests that includes cognitive aspects can improve the assessment of vision related to safe driving.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2015. , 42 p.
Series
VTI notat, 23-2015
Keyword [en]
Vision, Visual acuity, Field of vision, Driver, Measurement, Test method, Illness, Sight defect
National Category
Other Medical Sciences not elsewhere specified
Research subject
80 Road: Traffic safety and accidents, 84 Road: Road users
Identifiers
URN: urn:nbn:se:vti:diva-8033OAI: oai:DiVA.org:vti-8033DiVA: diva2:860703
Available from: 2015-10-13 Created: 2015-10-13 Last updated: 2016-04-12Bibliographically approved

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Thorslund, BirgittaStrand, Niklas

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