By Wendy Johnson
A paradigm shift from medical model to social model of disability seems to have occurred – and nowhere is that more apparent than in the many responses to the Royal Commission on Disability. This shift adds impetus to the provision of adjustments for those I describe in my book, Light Sensitive Learners: Unveiling Policy Inaction, Marginalisation and Discrimination. These are “light sensitive learners.”
Under the Disability Discrimination Act (DDA), students experiencing visual stress and a sensitivity to lighting may be given a coloured overlay (which reduces white paper glare and filters the spectrum); access to natural lighting and/ or a personal lamp.
Teachers have an obligation to provide such adjustments, wrote former NSW Minister for Education Adrian Piccoli in a letter to the MP for Ballina in 2014. However, many teachers don’t know about these obligations, and little, if anything, about light sensitivity and appropriate adjustments.
If lighting causes visual strain, then the National Health and Medical Research Council (NHMRC) Workplace Guidelines suggests:
Anti-glare filters for computer screens to relieve eye strain, fatigue, headaches and stress. Place blinds on windows. Flicker free lighting. Full spectrum lighting. Light filters for covering fluorescent lighting. Lower wattage overhead lights, task lighting or other alternative lighting. Large print. Coloured Paper.
Adjustments for light sensitivity are not new. Teachers in the USA ‘led the charge’ in 1908 because they wanted something done about the dazzle of white paper which made it difficult to read. Thanks to them, a ‘glarimeter’ was developed. School principal A. W. Ray argued in 1938 that artificial lighting was an “educational” problem because it made reading difficult. He worked out that “adequate spectral quality …is essential … for … seeing”.
That was the era when fluorescent lighting was promoted by General Electric and people started complaining about visual stress. By 1929, palliative light spectrum filtering (coloured) lenses had become common in NSW. Then they were forgotten.
Governments did nothing about the spectral qualities of lighting. But, half a century later, entrepreneurs (a school psychologist and a professor of psychology) promoted light spectrum filtering lenses again. Ophthalmologists reacted and claimed light spectrum filters are just a placebo! But visual perception lies within the discipline of psychology and not ophthalmology and the NHMRC is recommending light filters for overhead artificial illumination!
The spectral quality of artificial lighting in schools is still a problem. White paper is whiter because manufacturers have added fluorescent dye as a marketing strategy. Those who prescribe palliative light spectrum filtering (coloured) lenses compete for business. Many people can’t afford light spectrum filtering lenses, even if they know about them.
But teachers can, and ought to, provide adjustments for light sensitive learners. Why? Think about visual perception, a dynamic interactive process between light/eye/brain. Changing lighting changes visual perception. Visual perception impacts on most daily activities, including driving, playing sport and – reading. How could it not? This light sensitivity/visual perceptual problem is not just about reading, but reading is what most teachers, parents and researchers are interested in.
Teachers, along with parents, picked up the baton for light sensitive learners in the late 1980s at Alstonville High School in NSW and developed a policy for them (the only one in the world, to my knowledge and I write about this in my book). Academic results improved. Students told us that light spectrum filters or coloured paper take “the glare away and [take] away the movement [of words] quite a bit”. Some professionals don’t believe them. They say that schools should use evidence, but a student’s experience is not the type of evidence they want so they don’t ask for it.
No one picked up the baton and ran with it throughout Australia. No one ran with it throughout the world. Why not? There are several reasons including – vested interests! What are those vested interests? The lighting industry, the remedial reading industry, and the coloured lens industry.
The lighting industry is not accountable to any government. The Australian Standards authority in conjunction with the New Zealand Standards Authority (AS/NZ) has total control. More lights, more money and– who cares about spectral quality?
Some people in the remedial reading industry disparage coloured lenses. They are not ‘Magic Glasses’– they don’t cure dyslexia or learning disabilities. But, the problem is not dyslexia, and it’s not a problem with learning, it’s a problem with light sensitivity and visual perception. However, if light sensitivity and visual perceptual anomalies were acknowledged, the need for remedial reading might drop and that would reduce profit. So they would say that wouldn’t they?
“The global coloured lens market in 2022 is valued at USD 5403.28 million” and growing. Allegedly, there’s a “surge of eye disorders”. That’s good for ophthalmic professionals but, as Ray discovered back in 1938, artificial lighting was the problem, not his eyes. A significant number of six-year-old children in Sydney, experienced symptoms of “eye strain”, but researchers demonstrated in 2006 that “the vast majority had normal eye examinations”. Is light sensitivity their problem?
If teachers do nothing, the consequences for light sensitive learners include reduced academic results; visual fatigue, headaches, and lowered self esteem. A cumulative effect may be inattention and poor behaviour. Moreover, compliance with the DDA is mandatory.
Begin to shift attitudinal and environmental barriers by asking, “Would you like me to turn the lights off?”
This article was originally published on EduResearch Matters. Read the original article.
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About 40 years ago, children in the classroom were the subject of research by pioneering photobiologist, Dr. John Ott, the father of “full-spectrum” light technology. A critial point is missing with references to fluorescent light and learning.
Dr. Ott’s time-lapse photography research identified common fluorescent lighting to not only contribute to hyperactivity and learning problems… but be a carcinogenic!!!
Please see a few of Dr. Ott’s fascinating time-lapse videos associated with light, radiation and health at our non-profit, Science of Light.
https://scienceoflight.org/videos/