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Light sensitivity

Posted Nov 17 2008 6:15pm

Light sensitivity can cause many people problems.

Photosensitive epilepsy is the name given to epilepsy in which all, or almost all, seizures are provoked by flashing or flickering light, or some shapes or patterns. Both natural and artificial light may trigger seizures. Many people think that everybody with epilepsy is photosensitive, but in fact only five in every hundred people with epilepsy are.
SAD (Seasonal Affective Disorder) is a type of winter depression that affects an estimated half a million people every winter.
It is caused by a biochemical imbalance in the hypothalamus due to the shortening of daylight hours and the lack of sunlight in winter.
For many people SAD is a serious illness.


Migraine sufferers may experience hypersensitivity to light and sound.
Light sensory overload in autism is well documented
Three possible effects
• Direct hypersensitivity to light
• Over-stimulation from interplay of light in space
• Effect of changes in lit environment on contextual understanding & memory

C is certainly affected by light. He loves watching reflected light on surfaces, he can get totally absorbed in them. Some places he cant go in as the light really upsets him, usually the Fluorescent sort.


Am meeting C at hospital today as they are going to make a custom made helmet for him for his headbanging. As you can imagine hospitals are not his favorite place and the lighting doesn't help. Maybe i should ask them if they can design one with mounted shades!

I cant imagine how they are going to get near his head.
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