Light Sensitivity And Chronic Illness: 9 Facts That May Surprise You

Light Sensitivity And Chronic Illness: 9 Facts That May Surprise You

Written by Greg Bullock on 6th Dec 2016

There are numerous chronic conditions in which light plays a significant role, either as a trigger before an attack or as a symptom during or after it. Here are a few facts about light sensitivity and chronic illness that may surprise you.


Migraine / Headache Disorders


  • 50% of fibromyalgia patients suffer from external sensitivities, including those that come from bright lights and smells (Fibromyalgia Network, 1999)
    More info: Neurologic Relief Centers


  • About 3 to 5 percent of the 2.7 million Americans with epilepsy (approximately 100,000 individuals) are photosensitive.
    More info: Epilepsy Foundation
  • Light sensitivity affects younger epileptic patients at a greater rate. In fact, more than 30% of people with juvenile myoclonic epilepsy are photosensitive.
    More info: Epilepsy Research UK

Eye Strain

  • Adults under 30 years of age have higher rates of digital eye strain symptoms (73%) compared with other age groups.
  • More than 90% of individuals with digital eye strain reported using devices for more than two hours per day.
    More info: Digital Eye Strain Report 2016

Want more great information about light? Download  our free e-book for more!


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