Do Tinted Glasses Provide Migraine Relief
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May 27, 2011 Precision tinted lenses can help reduce the discomfort experienced by some migraine sufferers by normalizing activity in the brain, a study suggests.
Some people who suffer migraines ”are highly susceptible to stressful visual stimuli, says study researcher Jie Huang, PhD, associate professor of radiology at Michigan State University.
“The stimuli produce discomfort and perceptual illusions, illusions of nike ronaldo color, shape, and motion, he tells WebMD.
His earlier studies found that this susceptibility to visual stimuli is linked with excess activation in the brain’s visual cortex.
The excessive brain activity, in turn, can sometimes induce a migraine.
They tested 11 people with migraines and 11 without. The researchers made lenses known as precision ophthalmic tints for each person. They also made two other pairs of lenses, gray and colored, as comparisons.
Next, the participants were placed in a functional MRI machine and exposed to a range of striped patterns with different likelihoods of triggering distortion and discomfort.
Patients reported some relief with all the lenses, but the precision ones worked better.
”Wearing the control lenses reduced the degree of visual discomfort by about 40% compared to that without lenses, and wearing the precision ophthalmic tints resulted in a 70% reduction, Huang says.
The precision lenses suppressed brain activation in those with migraines.
Both the migraine and migrainefree patients responded in a similar way to the nonstressful striped patterns.
“It shows that although wearing nike ronaldo sunglasses could help those with migraine to reduce visual stress, wearing individually prescribed POTs [precision ophthalmic tints] may further reduce the visual stress significantly in comparison to that with wearing the sunglasses, Huang says.
While the visual stress for the study was produced by an experimental stimulus in the study, Huang says it can also result from such activities as reading, watching TV, or working on the computer.
Huang’s coresearcher, Arnold Wilkins, designed the Intuitive Colorimeter, the device used in the study to evaluate the best hue of light for visual comfort. He receives from the UK Medical Research Council a portion of royalties on sales of the colorimeter but not on the lenses sold.”The idea of nike cr7 collection using tinted lenses to reduce migraine and visual discomfort is not a new one, says Kathleen Digre, MD, professor of neurology nike cr7 collection and ophthalmology at Moran Eye Center at the University of Utah. She reviewed the study findings for WebMD but was not involved in the study nike cr7 collection.