Every day, I am asked, "Is blue light harmful for my eyes? Should I get blue blocking eyeglasses?" The simple answer is that there is no scientific evidence that the blue spectrum of light prevalent in digital devices such as cell phones, tablets, and computers, is harmful to your eyes. ...
Your eye is best described as a camera, and like a camera, it has a lens to focus an image to the back of the eye, known as the retina. If the front of the eye or the cornea is not perfectly spherical, you will not get a clear image....