Coloured Filters for Dyslexia, ADHD, ASD and more

Enhancing Reading Skills for Neurodivergent Children with Coloured Filters

Dyslexia, a common learning difficulty affecting reading and writing skills, has led to the exploration of various interventions to assist those who struggle with it.

One intervention is the use of coloured filters, which can be particularly beneficial for children with dyslexia and other neurodivergent disorders like ADHD.

Let’s investigate how coloured filters can help improve reading ability, the science behind their effectiveness, the best colours to use and additional benefits for neurodivergent children.

Understanding Dyslexia and the Role of Coloured Filters

Dyslexia is characterised by difficulties with accurate and/or fluent word recognition and by poor spelling abilities. These challenges are not due to a lack of intelligence or effort but are often linked to the brain’s way of processing language.

A diagnosis that is increasing in popularity is Irlen Syndrome/Meares-Irlen Syndrome which can cause text to appear distorted or jumbled, leading to headaches, eye strain, and difficulty focusing on the words. (read our article on Iren Syndrome here)

Coloured filters, which can be overlays placed on text or tinted glasses, are believed to reduce visual stress and make reading easier.

How Coloured Filters Work

The theory behind coloured filters is that they alter the wavelength of light entering the eye, which can reduce the perceptual distortions experienced by individuals with visual stress. This can lead to improved reading speed, accuracy, and comprehension.

Best Colours for Dyslexia

While the effectiveness of specific colours can vary from person to person, some common colours have been found to be particularly beneficial:

1. Blue: Many individuals with dyslexia find that blue filters help to reduce the appearance of moving or shimmering text.
2. Yellow: Yellow overlays are another popular choice, often reported to improve contrast and clarity.
3. Green: Green filters can also be effective, providing a calming effect that reduces eye strain.
4. Purple: Purple filters are sometimes preferred for reducing glare and enhancing visual comfort.

It’s essential to note that the best colour for each individual can vary, and what works for one person may not work for another. Personalised assessments are often recommended to determine the most effective colour for each child’s unique needs.

Additional Benefits for Neurodivergent Children

Coloured filters are not only beneficial for children with dyslexia but also for those with other neurodivergent traits, including:

1. ADHD (Attention-Deficit/Hyperactivity Disorder): Children with ADHD may benefit from coloured filters as they can help to improve focus and reduce visual distractions, making reading a less daunting task.
2. Autism Spectrum Disorder (ASD): For children on the autism spectrum, coloured filters can reduce sensory overload and make reading a more comfortable experience.
3. Sensory Processing Disorder: Coloured overlays can help children with sensory processing issues by decreasing visual stress and making text more accessible.

The Science Behind Coloured Filters

Several studies have explored the efficacy of coloured filters for improving reading performance. A review by Wilkins (2003) found that coloured overlays can reduce symptoms of visual stress and improve reading speed and accuracy for some individuals. Additionally, a study by Ritchie et al. (2011) indicated that coloured filters might help reduce eye strain and improve comfort during reading.

However, it’s important to approach these findings with caution. The effectiveness of coloured filters is still a topic of debate, and more research is needed to understand fully how and why they work for some individuals and not others.

Practical Tips for Implementing Coloured Filters

1. Personalised Assessment: Conduct a personalised assessment to determine the most effective colour for each child. This can involve trying out different coloured overlays or lenses to see which provides the most significant improvement in reading comfort and performance.
2. Consistent Use: Encourage consistent use of the filters during reading activities to maximise their benefits.
3. Monitor Progress: Regularly monitor the child’s progress and make adjustments as needed. What works at one stage may need to be reevaluated as the child’s reading skills develop.

Coloured filters offer a promising, non-invasive tool for helping children with dyslexia and other neurodivergent traits improve their reading abilities. While their effectiveness can vary, personalised assessments and consistent use can lead to significant improvements in reading comfort and performance. As research continues to evolve, coloured filters remain a valuable option in the toolkit for supporting neurodivergent children.

Does your child use coloured filters or glasses?

Does it help?

Please let us know in the comments, we’d love to hear your feedback.

By staying informed and open to various interventions, parents and educators can better support the diverse needs of neurodivergent children, helping them to thrive academically and beyond.

References

• Wilkins, A. J. (2003). Reading through colour: How coloured filters can reduce reading difficulty, eye strain, and headaches. John Wiley & Sons.
• Ritchie, S. J., Della Sala, S., & McIntosh, R. D. (2011). Irlen coloured overlays do not alleviate reading difficulties. Pediatrics, 128(4), e932-e938.
• Kriss, I., & Evans, B. J. W. (2005). The relationship between dyslexia and Meares-Irlen Syndrome. Journal of Research in Reading, 28(3), 350-364.
• Singleton, C., & Henderson, L. M. (2007). Computerised screening for visual stress in school children. Journal of Research in Reading, 30(2), 216-232.