Irlen Syndrome Myopia Prevention Behavioural Optometrist Children Clinic Sydney

Irlen Syndrome Myopia Prevention Behavioural Optometrist Children Clinic Sydney

Does Irlen Syndrome Vision Treatment Need Some Filtering?

Does Irlen Syndrome Vision Treatment Need Some Filtering?

Statistics show that one out of two children and adults around the world with learning and perceptual problems are being diagnosed with Irlen Syndrome and treated accordingly. But researchers and leading behavioural optometrists like Australian expert Gary Rodney are now questioning whether these statistics paint the true (and only) picture of what’s causing perceptual problems, or whether they are the result of misdiagnoses caused by inadequate eye tests.

What is Irlen Syndrome?

Irlen Syndrome is seen as a neurological condition which causes the brain to become over-active or over-stimulated and result in a communication breakdown between it and eyes which affects the way people perceive, and therefore process, what they see. In turn, this can lead to attention deficit, handwriting, visual distortion when reading, and problems with comprehension and accuracy. Other symptoms and indicators include sensitivity to light, headaches when reading, and seeing distorted images and words on pages. Treatments involve the use of colour filter overlays which cut out specific light wave lengths to which the client is believed to have excessive retinal sensitivity. 

RELATED ARTICLE: Myopia Prevention Behavioural Optometrist Children Eye Care Clinic Mosman Sydney

Irlen Diagnoses Based on Subjective Responses

Gary Rodney, and an increasing number of researchers and optometrists, are not challenging the theory behind the Irlen Syndrome, or the treatment offered by Irlen diagnosticians. However they do question whether the diagnoses and treatment are justified and accurate as both are determined purely on the basis of subjective responses from those experiencing the symptoms and undergoing the treatment and there is no actual objective evidence to back either up. 

In these circumstances, Rodney said, the validity of the answers and report-backs could be affected by the Hawthorne Effect which suggests that people react differently when they know they are being watched.

RELATED ARTICLE: Behavioural Optometrist Myopia Prevention Children Eye Care Clinic Mosman Sydney

Is Irlen Treating the Symptoms or the Cause?

Rodney, the founder of the Smart Vision approach to optometry in Australia, said this subjective approach had taken its toll on the comprehensive nature of routine optometric eye tests, causing some optometrists to exclude tests and screenings which could lead to an objective diagnosis based on real evidence regarding those eye function anomalies which show the same symptoms treated by Irlen filters, and respond well to eye therapy. 

Without this screening, he said optometrists cannot easily detect anomalies like binocular vision in which the eyes stop working together as a team, so affecting their ability to and provide single vision and good depth perception. Nor can they pick up accommodative insufficiency which makes it difficult or impossible to change the focus easily between distance and close-up viewing, a function usually accomplished by changes in the eyes’ lens shape or sustain focus when reading without effort. 

And according to two separate studies on the efficacy of the Irlen Syndrome filter treatment, screening showed a large percentage of those who had qualified to undergo it had this type of undetected visual anomaly. The percentages stood at 83% according to Taub et al, and 95% in the Scheiman et al study. 

For behavioural optometrist Gary Rodney, the ability to perceive correctly what you are seeing and.visually concentrating without mental effort is as important as being able to see it. 

For more information on the Irlen Syndrome and other vision problems, visit the Smart Vision website, Optometrists Sydney: Optometry Services For Children and Adults | Smart Vision, or call one of the three Smart Vision NSW clinics at Bondi (02) 9365 5047, Mosman (02) 9969 1600 or Pennant Hills (02) 9481 0449.

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The information contained in this article is based on the authors opinion only and is of a general nature which is not indicative of future results or events and does not consider your personal situation or particular needs. Professional advice should always be sought relevant to your circumstances.

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