Chandra Opticals with more than 35 years of optical experience is opening its ultra modern optical unit with eye testing facility in siliguri . There is so much myth surrounding eyes and spectacles. Doubts not cleared. The scientific process of selecting the spectacle. Are all the blue lights harmful or they are needed for the protein formation of cornea. How much hour should your child be allowed to use mobile? Which is more harmful TV or mobile? Why there is dryness even with teenager eyes? All these queres will be soon answered with scientific explanation.