In order to complete this exercise you are required to first read the following article:
- Farrell J. Cause of non-tolerance. Optician. Click here to read it. Please return to this page once you’ve read the article.
Two further references we strongly recommend you refer to are:
- Elliott DB, Howell-Duffy C. Non-tolerances and the science of prescribing spectacles. Optometry in Practice 2015 Volume 16 Issue 4 131 – 144
- Freeman CE, Evans BJ. Investigation of the causes of non-tolerance to optometric prescriptions for spectacles. Ophthalmic and Physiological Optics, 2010 Jan;30(1):1-11
Before the interactive exercise we need you to complete six multiple choice questions relating to the source material. You can take these as many times as you wish until you have a 100% score. You will then be able to begin the interaction.