Illumination items: The effect of modern illuminants on the eye

We are told on the best of authority that factory and other work efficiencies are enhanced by increase of illumination. Are we then speeding up our bodies at the expense of our eyes? While there are but little experimental data upon which to base such an opinion at the present time, much good work bearing upon another phase of the question makes it possible to state without much fear of contradiction that if the lighting, although of high intensity, be properly arranged in relation to the work, not only will no harm result but there will be an actual benefit.