FL-41 Glasses Centre Manchester

We sell FL-41 lenses in prescription and none prescription form. FL-41 lenses have proved to be help patients with migraine headaches, blepharospasm (eyelid spasms), light-triggered seizures, CVS (Computer Vision Syndrome) and other light-sensitive/triggered conditions.

FL-41 is a category 2  lens with an LTF of 50%. FL-41 works by blocking certain colours namely blues and greens. The wavelength filtered by FL-41 was first described in a research project that took place in Birmingham, England in the early 90’s.  In this study, children with migraine headaches wore FL-41 filtered lenses. The researchers found that wearing the FL-41 filter improved the light sensitivity in these children, as well as lessened the frequency and severity of their migraine headaches. Since that time, FL-41 filtered lenses have been used to treat these and other conditions.

Blepharospasm and migraine patients suffer more from light sensitivity, vs. people who do not struggle with these conditions.  Research at the University of Utah have also found that when these patients have had their light sensitivity treated, their blepharospasm and migraine symptoms have improved.

Recent research tested FL-41 filtered lenses, head-to-head, against conventional gray sunglasses and standard, rose-tinted spectacles.  Notably, the majority of patients prefer wearing FL-41 filtered spectacles. Glasses with the specialised wavelength treatment are available in a range of frames from UK Eyewear. Need help or advice, then don't hesitate to contact us.

 
FL-41 lenses

FL-41 lenses

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