Throwing Light on Migraine Triggers

Megaman has recently been involved with an informal project to study the effects of compact fluorescent lamps on migraine sufferers with light sensitivity issues. And the project has thrown up some unexpected results which could help migraine sufferers to select low energy lighting products which minimise the number and severity of attacks. The joint project, using specially selected Megaman CFLs, and a panel of volunteers from the UK charity Migraine Action, has concluded that products with certain colour temperatures could be more beneficial to migraine sufferers, and that larger bulbs (i.e. those with less glare) are probably better than smaller, more intense light sources.

While the lamp trials were informal, and involved only 25 volunteers, the results turned up some unexpected results. For instance:

• A standard ‘GLS' traditionally shaped bulb of colour temperature 2700K resulted in fewer ‘triggers' than other types tested.
• Both warmer and cooler colour temperatures than 2700K (e.g. 2400K, 4000K and 6500K) triggered more attacks.
• 4000K bulb types caused most attacks.
• A small diameter ‘globe type triggered more attacks than a larger, more powerful type indicating that glare or intensity of the light source may also be a factor.
• The range of colour temperatures tested would seem to represent the limits of practical application, as a number of participants viewed 2300K types as "too dim" and 6500K types as "too bright" or "too intense".

The trials do seem to have identified key CFL characteristics which may be less likely to trigger attacks in certain migraine sufferers. So further investigation now seems worthwhile, leading hopefully to a range of ‘low trigger' products available specifically for light sensitive users.

Download a copy of the full Lamp Trial Report (PDF Format).