Natural sunlight and its association to civil aviation accidents

Optometry : Journal of the American Optometric Association
Van B NakagawaraRon W Montgomery

Abstract

Glare is a temporary visual sensation produced by luminance within the visual field that is significantly greater than that to which the eyes are adapted. Glare from natural and artificial light sources can result in temporary visual impairment, increasing the risk of an accident. This study investigates the relationship between visual impairment from natural sunlight and aviation accidents. The National Transportation Safety Board Aviation Accident/Incident Database was queried for the period January 1, 1988 to December 31, 1998 for terms, which included "sun," "glare," "vision," "blind ed," and "reflections." Reports annotated with one or more of these terms were reviewed to determine whether glare was considered a direct or contributing factor in the event. There were 130 accidents in which glare was found to be a contributing factor. The majority of these events occurred during clear weather and atmospheric conditions (85%), and were associated with approach/landing and takeoff/departure phases of flight (55%). Exposure to glare from natural sunlight has contributed to aviation accidents, primarily under otherwise optimal visual conditions at low altitude in congested airspace. Preventative techniques are presented that may...Continue Reading

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Citations

Apr 22, 2009·Aviation, Space, and Environmental Medicine·Guohua LiGeorge W Rebok
Apr 3, 2008·Journal of Anatomy·Shannen L Robson, Bernard Wood

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