Very very interesting topic. I was also used to suffer from the visual migraine as you describe it. For another exemple, it is like looking at the phone in co

Very very interesting topic. I was also used to suffer from the visual migraine as you describe it. For another exemple, it is like looking at the phone in complete darkness with the phone brightness set to the maximum; but that effect in daylight with the screen set to low/normal brightness level. Maybe I'm wrong, but the deductions I did from my issues was that it might be related to work conditions. For example, I used to have the computer screen at 90° of a window. And there was probably constantly a little bit of light reflexion on my screen. So it is not so much to be noticable or annoying, but for a full day it will exhaust my eyes and brain. And I would regularly have the issue at the end of the day. Then, I changed of work and of light conditions, and I almost never got the issue anymore. (Still once in a while, but very very rarely compared to before) Also, I discovered that there are a lot of good advice regarding the work environment that you should try to respect: - no excessive room temperature (>21) - no sun or light directly in front. No light reflexion from the back or side. - room ambiant light the closest possible to the brightness of the screen But, a point that could support the theory of this publication is that, when the issue arrived, it was often that I was feeling hungry for sweets and desperately looking for a snack.