Could visible light contribute to the development of leukaemia and other cancers in children?

With regard to public health, the pervasive exposures to light - at work and in homes - imply that visible radiation could be a strong risk factor defined epidemiologically as a causal contributor to disease in a large proportion of cases. Importantly, if light were to be corroborated as a contributor to cancers in children, it would be amenable to manipulations with the perspective of reducing inherent risks significantly. In fact, it could be much easier - and much more effective - to reevaluate and modify lighting systems than to manipulate other possible determinants of the chronic processes of cancer such as genetic, nutritional or lifestyle factors.