Dyslexia

Specific Learning Difficulties (Dyslexia)

We work with both adults and children, at all stages of their studies, whether at nursery, school, university or in work. Our SLD clinic is designed to remove the visual disadvantage and allow our patients to reach their full potential.

It has been known for some time that there are factors or problems that are more likely to be present in a dyslexic population than in a non-dyslexic population. In other words, these factors are correlates. This does not imply they will always be present in dyslexic children or adults, and it does not mean that these factors are a cause of reading difficulties. Most of the correlates do not relate to vision, but are psychometric. There are, however, several which are connected to vision and it is these which we, as optometrists, are interested in.

Dyslexia

The work we do with dyslexic adults and children is based on the work which was performed by Dr Bruce Evans, of the Institute of Optometry in London, and Arnold Wilkins, of the Department of Applied Psychology in Cambridge. The assessment is performed in four stages:

  • Stage 1
  • Stage 2
  • Stage 1 of the assessment follows approximately 6 weeks to 3 months after Stage 3 and if the patient is still using coloured overlays after this period of time, then we feel they are strong candidates for tinted spectacles.

    The instrument which we use to assess this is called an intuitive colorimeter and can give up to 120 000 variations of colour to ensure that we get the correct individual tint for the patient. As this is such a complex and, in some cases, controversial subject, we do have a patient booklet which explains in more detail the principles we follow in the assessments. It is ideally suited for parents and teachers of dyslexic patients, and can be downloaded here.

    All patient downloads
  • Stage 2 of the assessment follows approximately 6 weeks to 3 months after Stage 3 and if the patient is still using coloured overlays after this period of time, then we feel they are strong candidates for tinted spectacles.

    The instrument which we use to assess this is called an intuitive colorimeter and can give up to 120 000 variations of colour to ensure that we get the correct individual tint for the patient. As this is such a complex and, in some cases, controversial subject, we do have a patient booklet which explains in more detail the principles we follow in the assessments. It is ideally suited for parents and teachers of dyslexic patients, and can be downloaded here.

    All patient downloads