YOU ARE ALREADY HAVING PRESBYOPIA IF YOU DO THE FOLLOWING
  1. stretch your reading materials out while reading.
  2. Difficulty reading small prints.
  3. Headaches when you try to read small prints.
  4. Requiring abnormally large prints while reading.
  5. Requiring extremely bright light to read clearly.
  6. You can see far distance with your glasses but you can’t read small prints with your glasses.