SMART VISION · BONDI BEACH & MOSMAN
Intuitive Colorimeter
At a Glance
Colorimetry explores a person’s response to coloured illumination. Evidence for coloured filters is uncertain, and they should not be offered as a dyslexia treatment. Discuss an eye assessment, possible causes of symptoms and the limits of any proposed intervention.

Intuitive Colorimeter Assessment in Bondi and Mosman
The Intuitive Colorimeter lets a person compare how coloured illumination affects the comfort of viewing text. At Smart Vision Optometry in Bondi and Mosman, ask whether an assessment is appropriate after other causes of visual symptoms have been considered.

What is an Intuitive Colorimeter?
The instrument presents different colours under controlled viewing conditions. The person reports which settings feel more comfortable. It is used when considering precision-tinted lenses; it does not measure a chemical “concentration” of visual stress or diagnose dyslexia.
How Does It Work?
An eye examination and discussion of symptoms come first. During colorimetry, the practitioner varies colour settings while the person views text and reports their experience. Any proposed tint should be discussed alongside the uncertainty of benefit, cost, alternatives and a review plan.
What the Assessment Can and Cannot Tell You
- Individual response: The assessment records reported comfort under different viewing conditions.
- Evidence limits: Research on coloured filters is contested; symptom reports do not establish improved reading or educational outcomes.
- Informed choice: Discuss time, expense, expectations and alternatives before proceeding.
When to Seek Advice
Different symptoms require different assessment pathways:
- Reading difficulties: Eye care can address coexisting visual problems but does not replace evidence-based literacy support.
- Headaches and light sensitivity: These symptoms need appropriate eye-care or medical assessment; this page does not promise migraine prevention.
- Visual discomfort: Review prescription, eye health and other possible causes before considering a tint.
What is Visual Stress?

“Visual stress” is a term used for discomfort or perceived distortion when viewing patterns or text. Its diagnosis and the use of coloured filters remain debated. These symptoms alone do not establish a specific condition.
Blur, eyestrain or difficulty reading can have several causes. Start with an eye assessment rather than assuming a coloured overlay is needed. Persistent headaches or other symptoms may also need medical assessment.
Coloured filters are not a treatment for dyslexia, ADHD, autism or other developmental conditions. A child with reading difficulties should receive appropriate educational assessment and support. Read more about the role and limits of eye care in learning difficulties.
Symptoms to Discuss with Your Practitioner
- Blur or apparent movement of print
- Discomfort when viewing text or patterns
- Headache, eyestrain or light sensitivity
- Symptoms that recur or interfere with daily activities
- Any new or changing visual symptoms
Useful Information to Bring
- When symptoms began and what triggers them
- Whether symptoms occur with current glasses
- How long symptoms last
- Any associated headache or other symptoms
- Relevant medical and educational assessments
- What helps or worsens the discomfort
Before purchasing tinted lenses, ask what outcome is being assessed, how any benefit will be evaluated, and what happens if symptoms do not improve. Some people report greater comfort, but this should not be presented as proof of improved learning or a guaranteed treatment effect.
Contact Us
Contact Bondi on (02) 9365 5047 or Mosman on (02) 9969 1600 to discuss symptoms, appointment availability and fees. Bring current glasses and relevant eye-care or medical reports.
Does an Intuitive Colorimeter diagnose dyslexia?
No. It records responses to coloured illumination, not the language and literacy skills used to assess dyslexia. Reading difficulties need appropriate educational assessment.
Are coloured lenses guaranteed to help?
No. Some people report greater comfort, but the evidence remains contested. Discuss expected outcomes, costs, alternatives and how any benefit would be reviewed.
How can I ask about an assessment?
Contact Smart Vision Optometry in Bondi or Mosman to discuss symptoms and appointment options. Confirm availability and fees before booking.
Further reading: our article on good sight and vision, the College of Optometrists guidance on tinted lenses, RANZCO guidance on learning difficulties and Cerium’s description of the instrument. Manufacturer information describes the technology; independent guidance informs discussion of evidence and limitations.
Care built around your individual needs
Discuss your needs with our Smart Vision behavioural optometrists. Your detailed assessment guides a personalised wellness treatment programme where appropriate.
Bondi Beach · Mosman
