ABSTRACT
@#In modern society, children and adolescents are experiencing an increasing incidence of myopia, resulting from the combined influence of genetic factor and environmental factor. Despite the influence of genetic factor, a great number of researches indicate that environmental factor has been playing a crucial role. Outdoor activity proves to be a major protective factor to reduce the incidence of children's myopia. Sunlight is one of the important ones among various factors of outdoor activity. The intensity, wavelength and rhythm of sunlight may all affect eyeball's refraction development. Varied sunlight environment may have different influences on eyeball's refraction development. The paper has summarized clinical and trial and animal experiment research results on how sunlight affects eyeball's refraction development, and it has offered references to further study on refractive error development mechanism and prevention strategy.
ABSTRACT
The parameters of illumination conditions include duration,illumination intensity,color temperature and so on.Different combinations of these conditions have different effects on human beings at the visual and psychological level and are related to occurrence or prevention of psychological diseases.Extension of illumination time and phase change of circadian rhythm increase the risk of bipolar disorder;changes in daytime,night or all-day illumination intensity have psychological effects,especially exposure to light at night increases risk of depression;inaddition,changes in color temperature of light also have psychological effects.This paper reviewed the effects of different illumination conditions on visual psychology.