Blue has an activating effect. It makes us think of refreshing water or a clear blue sky.
Light blue lenses, sunglasses often have a calming, relaxing, and reassuring effect. It stimulates intuition and weakens loneliness.
Light blue lenses tint enhances the contours around objects and improves color perception, it also can reduce glare during snowy conditions, while enjoying water sports, or enjoying sunny leisure activities.
A lot of us have heard that blue light impacts our sleep/wake cycle. Blue has an activating effect. It makes us think of refreshing water or a clear blue sky. And there's scientific evidence to back this up. A previous study showed that test subjects were better able to concentrate at night when exposed to blue light (as compared to white or red light).