Sources such as sunlight, fluorescent light and incandescent light all can cause discomfort, along with a need to squint or close your eyes.
Headaches also may accompany light sensitivity.
Light-sensitive people sometimes are bothered only by bright light.
In extreme cases, however, any light can be irritating.
Can bright lights cause migraines?
And bright, intense light—such as sunlight, overhead fluorescent lighting, or reflected glare—is one of the many reported triggers that can cause or worsen these migraine attacks. People with migraine often have a lower threshold for light and light-related pain when compared to those without the condition.
Why are my eyes sensitive to light all of a sudden?
A sudden onset of substantial or even painful light sensitivity (photophobia) may be caused by inflammation in the eye. This may be due to a foreign body in the eye, an infection of the cornea or an inflammation of the iris or uvea. Light sensitivity can also occur after having LASIK or cataract surgery.
What causes light sensitive migraines?
Causes. Photophobia is linked to the connection between cells in your eyes that detect light and a nerve that goes to your head. Migraines are the most common cause of light sensitivity. Up to 80% of people who get them have photophobia along with their headaches.