Doctor, which glasse is best for eyes? I heard that blue cut lenses blocks blue light from visible light from reaching our eyes. However blue light plays an important means of regulating our biological rhythms and affects our general well-being. blue light that reaches the retina, also affects my psychological well-being. Therefore completely blocking blue light from reaching eyes can make me feel drowsy, dull ,sleepy or i may even suffer from minor head aches. Even i wearing blue cut and now habitual of wearing it and if  keenly observe I will find myself less active. Please advice.