Bright light can trigger migraine headaches and many migraine sufferers have increased sensitivity to light during an attack.  A recent report has suggested that wearing amber colored lenses (Nike Maxsight) can relieve the light sensitivity.  For some of our patients wearing these lenses has allowed them to go outdoors on a sunny day without getting a migraine.  A new report in the journal Drug Development Research proposed a theory that each patient might best benefit from an individually selected tint (PSF, or precision spectral filters).  The article, Prevention of visual stress and migraine with precision spectral filters presents a convincing argument which should be relatively easy to test.  PSF appears to be more easily available in the UK where most of the research has been conducted.