Table of Contents
Lens tinting for headache
FL-41
- reduction of photophobia and headache in people with migraine headaches
- fMRI studies show decreased light-evoked activation in areas associated with pain processing (somatosensory cortex, insula and anterior cingulate cortex)
Blue light blocking lenses (480nm)
- Benefit seen in a randomized controlled trial- reduction in headache pain
Colors and effect on headache
- Green light is most tolerable
- 620 nm filters help in some (orange-red)
- Blue, amber, red and white light are more likely to exacerbate headaches