CONTACT DETAILS: tel: 07 5572 0269 email:

IRLEN..... a piece of the puzzle

Ninon Klease
is one of the few specialists certified to diagnose and prescribe the tinted lenses (Irlen Spectral Filters) used in the Irlen Method to help with visual dyslexia, reading problems, school difficulties and light sensitivity, which can cause headaches and other physical symptoms.

Ninon has a background in Education, having taught for 25 years, 10 years of that as a Learning Support Teacher. She has also worked as an Irlen Consultant for 25 years. Ninon is based at her Gold Coast clinic but travels to Toowoomba on a regular basis to see clients from all over the Darling Downs and the far west.


In IRLEN SYNDROME (also known as Scotopic Sensitivity Syndrome) there is a problem in the way visual information is processed by the brain. It is not a visual problem and cannot be identified or treated by optometrists with prescription glasses. People with Irlen Syndrome see the page differently from others and may not even be aware of this. Many people with Irlen Syndrome report that the text appears to change as they are reading. They may also experience fatigue, tiredness, headaches, sore eyes and other symptoms of strain, all of which make reading and concentration difficult. This can lead to slow and inefficient reading, poor comprehension, and limited attention span. This can affect not only reading and writing but maths as well. It can also affect behaviour and their perception of the environment. Scotopic Sensitivity is a disability recognised by Naplan Special Provisions and Queensland Core Skills Special Provision Handbook.

How can my child be assessed?

The initial assessment is carried out by professionally trained and  certified Irlen screeners (see below for a list of screeners in your area). Initial assessment is made using a highly specialized system of coloured overlays that are placed over the text. If this proves helpful, it is then followed by more detailed testing to determine the exact colour of the lenses to be worn in the tinted glasses or contact lenses. This testing is done by the Irlen diagnostician who carries out a very detailed diagnostic assessment. This is necessary to determine the most beneficial filter colour from an almost limitless number of colour combinations. The correct colour filters out offending wavelengths of light and allows the brain to accurately receive and process visual information.

How common is IRLEN SYNDROME?

Approximately 50% of children with reading problems, ADD/ADHD, dyslexia or various learning disabilities may suffer from Irlen syndrome. These children may be seen as underachievers with behavioural, attitudinal or motivational problems. They may appear bright but seem "not to be trying hard enough".

There are also many adults who have Irlen Syndrome.  Click here to see some clients' descriptions of the difference the Irlen Lens has made to their lives.

For further information and results of scientific research, visit the suggested websites or contact us.




Regional Director

Ninon Klease
B.Ed., Dip.Teach.M.A.A.I.C

Screener & Diagnostician
ph. 07 5572 0269



Clinic Director

Jenny Webster

BHMS(ed)., B.Bus.,
CertIV Training & Assessment

Screener & Diagnostician
ph 0437 699 432

Dianne Bevan

Ipswich & District

Dip.Sp.Ed., B.A.,M.Ed.,
Grad.Dip.Mental Health
for Teaching Professionals

Screener & Diagnostician
ph 0421 310 768



Tracy Ashbridge


ph. 0401 628 209

e Macdonald
Multilit Tutor/Certif.III Ed. Support

ph. 0414 782 218

   Donna Kelleher
Lockyer Valley
B.Ed., Dip.Teach.

ph. 07 5427 9099 
0422 804621

Kerrie Price
Lockyer Valley
B.A., Grad.Dip.Teach., J.P.

ph. 07 5465 6697
0401 796 857


Suggested Reading

Helen IrlenReading by the Colors(1991)Penguin Putnam/Perigee Publishers

Helen IrlenThe Irlen Revolution
Square One Publishers. N.Y.

BOOKS available from Gold Coast Irlen Clinic

 Suggested Links



Copyright 1998-2006 by Perceptual Development Corp/Helen Irlen translated by Ninon Klease. All rights reserved.
Copyright 2012-2015 Irlen Clinic Gold Coast. All rights reserved.