What if Glasses were Never Invented? + more videos | #aumsum #kids #science #education #children

Buy AumSum Merchandise: http://bit.ly/3srNDiG Website: https://www.aumsum.com Glasses are believed to have been invented in the 13th century. Also, it is estimated that more than 40% of the world's population wears glasses or contact lenses. If glasses were never invented, people with the following conditions would greatly suffer. Myopia or nearsightedness, that is distant objects appear blurry. Hypermetropia or longsightedness, that is, close objects appear blurry. Astigmatism, a condition in which people suffer from blurred vision. When we say glasses were never invented, it is safe to say that convex or concave lenses used in them were also never invented. As a result, astronomy as well as medical research would greatly suffer because telescopes and microscopes would not work without those lenses.