The Measuring Tape

Once you have a bit of practice, taking a centimeter measurement only takes a few seconds.  You will use this for several purposes:

  • Get a baseline reading before you begin your improvement journey.
  • Measure for variance – How much your eyesight changes throughout a regular day.
  • Measure for strain – How much your eyesight is affected by long hours in front of a computer.
  • Measure for prescription – How strong your glasses should be.

That is a lot of information to get out of a single measurement!


The rest of this guide is available from the courses section of the site.