EYE STRAIN
Eye strain is neither a medical term nor a diagnosis. In contrast to widespread belief, you cannot damage or strain your eyes by using them under difficult conditions, such as reading small print in poor light or wearing glasses of the wrong. Although aching and discomfort are commonly attributed to eye strain, they are often headaches that are caused by tension or fatigue of the muscles around the eye as a result of frowing or squinting.
Continue reading Eye Care: Eye Strain, Color Blindness, Blindness and Conjunctivitis