Do you have any examples of the basic magnification levels?

You can use RNIB's magnification prediction chart to determine the level of magnification that you are likely to need in order to read newspaper size print:

Obviously this can only be used as a rough guide since many other factors, including the level of lighting or the strength of your current reading glasses, can affect the level of magnification needed.

When using the chart

  • Always wear your reading glasses, even if you have found them of little benefit in the past
  • Use a desk light to add additional light onto the page. For best results direct the light in front of you onto the prediction chart
  • Hold the chart at 25 centimetres (10 inches) from your eyes or at your preferred distance where you feel most comfortable and can see the chart easily
  • Starting with the largest print, read down the various print sizes until you find it too difficult. The smallest print size that you can comfortably read should then be used for your prediction
  • Look at the recommended lens power written on the right hand side below the last print size that you can read. For example if the smallest print size you can read at 25cm is N32, then you require approximately +16d (5x) magnification in order to read newsprint.

For information on choosing a magnifier see How do I find the best magnifier for my needs?

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