Problem
Night blindness
Other Names:
NyctalopiaNight myopia
Defective night vision
Nature:
Many people who score 20-20 for acuity in daylight do not test nearly so well in dim light, and may have poor ability to perceive contrasts and use peripheral vision as the light fades, or be troubled by nighttime glare.
Incidence:
Of 300 Canadian research subjects, one third between the ages of 15 and 25 experienced a loss of vision at night, and about 50% of these did not realize they had a problem. Low light conditions are the most common cause of all accidents and may account for about 80% of fatalities involving bicyclists or pedestrians. In the USA in 1990, nighttime automobile accidents were about 3.7 times more common per kilometre driven than daytime accidents.
Broader Problems:
MyopiaTravel risksNutritional blindnessVisual impairment Strategies:
Researching road safetyCorrecting eye disorders Subject(s):
Health Care → Blind, visually impairedMedicine → Eyesight
Societal Problems → Failure
Related UN Sustainable Development Goals:
Problem Type:
E: Emanations of other problems Date of last update
04.10.2020 – 22:48 CEST