For one of my friend.

Video game can cause migraine?
I don't know what's migraine in English either in Mandrin,so I looked up in the dictionary.

偏头痛

sounds familiar.........I think my dad mentioned it before......
Isn't it old people that got something wrong on the back of their brain only got de?
How come play PSP also will get?

I only heard of Photosensitive Epileptic Seizure,the game Audiosurf issues a warning about it every time I start the game...
Sickness cause by video game ah?
Erm......Personal experience when watching people playing FPS (like COD2,4,5 and CS),sometimes I'll get a bit of dizzy.

Out of my curiosity,I went online and research.

Source:
http://www.migraine4kids.org.uk/teachers.htm

http://en.wikipedia.org/wiki/Migraine

http://house.wikia.com/wiki/Migraine

Symptoms:

-Headache
-Throbbing headache (Beating ache on the head)
*may occur at middle of the forehead or behind the eyes
*Mostly on one side of the head
-Nausea
-Vertigo
-Vomit (often contain bile).
-Look very pale
-Dark circles under the eyes
-Heightened sensitivity to bright lights

Causes:

My mom said stress would cause it too...Yup,you'll stressed up when you play games!

-Inherited (most common,my mom told me)

-Dehydration

-Foods (etc:chocolate)

-Long gaps between food (AHHEM!)

-Stress (Toldya!)

* Pressures of school work (even very young children can now feel under pressure to prove themselves aca­demically), finding it too difficult or boring. A very bright child can sometimes be anxious about losing his/her place at the top of the class.
* Problems at home, for example, sibling rivalry or argu­ments between parents can also cause tension.
* Problems with schoolmates, such as bullying or being made to feel inferior because he/she doesn't have the latest "designer" clothes or toys.

-Changes in sleep patterns (AHHEM!)

-Excitement

-Television, computers, video games

-Extreme exercise

-Stuffy atmosphere

-Light

-Dental (e.g. tooth grinding, misalignment of bite)

-Eyesight problems

*It may be a combination of those above to trigger migraine


o.O
and,it's hard to be cured.Drug are available to control it,not cure it,since it's something to do with the nerves.

Hope these helps
Please notify me if any information above are wrong.
Main source:http://www.migraine4kids.org.uk/teachers.htm
Good luck yeah!