Set of 3 Grass Green Duo Window Reading Rulers


Do you or your child suffer from scotopic sensitivity/visual stress? Do you or your child struggle to read or suffer frequently from headaches or migraines? Would you like to make reading faster and easier? A significant proportion of the population would benefit from the use of a correctly selected coloured reading ruler.

The Reading Ruler


  • The Reading Ruler is a 2.5” deep plastic strip with tinted transparent edges and an opaque central area that allows the reader to read through the colour of their choice while tracking the line with the edge of the strip. (See photo).
  • There are 2 windows. The narrow window, this is suited to early readers as the focus is confined. The wider window allows readers to see a larger amount of text. The aim is to read from the tracking line down so that it is possible to scan ahead.
  • Because the Reading Ruler can slip into a pocket or pencil case, or even remain inside the book as a bookmark, it does not carry the “Special Needs” stigma of a full size coloured reading ruler.
  • The reading ruler is ideal for all ages - nursery to adult. Can be used at home, in school, college or at work
  • It is Easy to store; inexpensive to buy
  • PRICE: Just $14 per set of 3 reading rulers


Please note the colour shown in the picture may not be an exact representation of the colour in real life.

A significant proportion of the population would benefit from the use of a correctly selected coloured reading ruler.


What Difference do Coloured Reading Rulers make?

  • By putting a coloured reading ruler on top of a book, the print can stop blurring or suddenly it becomes clear and much easier to read.
  • When a person has the right tint, a number of aspects of reading can improve, including reading speed if you can see the print clearly. This in turn can affect fluency and comprehension.
  • When a person struggles to read and spends more time decoding words and rereading; it can make the print blur. Putting a colour on top can soften the print and make it easier on the eye.
  • Many individuals who use coloured reading rulers have reported a reduction in headaches and migraines.
  • These rulers are not necessarily intended for poor readers. They can help when your eyes become tired, as black ink on a white background can be quite stark and glaring, as can trying to read something that has a gloss laminate. They serve to soften the look of the print.


Apple and Microsoft research has lead to coloured tints for reading being offered as accessibility features on devices such as iPads and iPhones and programs such as Microsoft Immersive Reader.


What do Users think?

Adults and children I have used coloured reading rulers with have made comments such as:
“The print has stopped blurring, how can that happen?”
“My child now uses the coloured reading rulers at home and at school and, not only have we all seen significant progress in his reading ability because he can actually see the letters, but he now actually enjoys reading.”
“Is this how everyone else sees print? No wonder I found reading so difficult.”

When I have used the coloured reading rulers in class with children who have reading difficulties, some children say the colour change, 'Stops the words shimmering', and 'makes the letters look bigger and clearer.’


Why Coloured Reading Rulers?

When it was initially suggested that coloured reading rulers could dramatically improve reading ability, such claims were dismissed as them just having a novelty effect. However, there has been much research into this theory and scientific evidence proves that coloured lenses or reading rulers can be extremely effective. Professor Arnold Wilkins (currently Head of the visual Perception unit at the University of Essex) found that up to 20% of the population of the UK schools where he conducted his research suffered in varying degrees from visual distortions or discomfort associated with reading. His book “Reading Through Colour” tells the story of the discovery and development of the use of coloured reading rulers  to help overcome reading difficulty.


How can they be used?

  • Parents purchase a set for their child to use at home. Some parents get two sets, one for home and one for school.
  • Schools have screened their students and have a variety of coloured Reading Rulers available in each class
  • Employers get sets for themselves and their employees.
  • Adults who experience migraines, frequent headaches or have to concentrate on reading over a long period of time use them at work and at home.