Nausea & Dizziness

If I even step into a room where a laser is in use I become almost immediately nauseous.
The way I have to use them is at very brief exposures, and well thought out configurations because for me every second counts.

As to the de-focus question specifically, the answer is "yes." Under conditions of 1 foot at fifteen feet, sustained exposure greater than 15 seconds, 532nm, 100mW= nausea

I have gotten really good at "focusing" on 405, to the point where all I see if the pinprick spot, no blooming. If I just over focus to a blank space closer to me, in between my eyes on the spot, it will make the spot very crisp. I can see it so clearly, that I can even see the smoke of whatever it is focused on, coming right from the spot. No over saturation, blooming, glare, it's perfect.

Maybe you could try that. Just make yourself cross-eyes basically, focus your eyes on an empty space between you and the spot. If that doesn't work, go beyond the spot.

Well Airman, before I reply, I would like to just take a moment and rub your LEG a little if I may. To those of you who are unaware of what that flash is on bloompyle's beret, it is the emblem for the US Air Force's Pararescue unit. This elite force is responsible for risking their own lives, in the harshest of environments, anywhere in the world, simply so that others may live. They are some of the bravest, strongest, most well trained medical personnel in the U.S. military. I have personally worked with a number of these exceptional soldiers and have seen first hand the lengths they will go to just to save a single individuals life. They hold the very definition of "honor" in their service, as they strive to SAVE the souls of even those that might wish to harm them. Thank you for your service, and ..."Follow Me!"
Now about that other thing...
Oh yea. The laser...
Makes no difference. Simply being exposed to the light can at times be enough to cause the discomfort. I'm not sure what attempting to focus even more of my vision on an even more coherent point of light is supposed to help, but, I can say this. For some reason the violet colored lasers DO NOT seem to bother me quite as much as some of the others.

This is strange to me, as I have not felt any discomfort with any wavelengths yet. Though if the difficult to see wavelengths have this effect, then I will be sure to make note of any discomfort, or lack thereof when testing the TEA or HeCd. Definitely something to look for if others experience, and I do not.

Stay frosty,
Reeber

PS. Policetac, as is tactical? I take it you have been part of relief efforts in the past?

I think the idea of a form of epilepsy should not be discounted.

I don't know and haven't researched, but generally, I think of epilepsy as a way for extreme visuals to trigger physiological symptom like headache. Laser light has funky speckle that jitters and flitters, but it does so in such a way that you can control how jittery or stable it is by how you are looking at it. Maybe it makes your brain think that it isn't looking at it right, and it ties itself up trying to make sense of this strange light phenomenon.

Now I understand the significance of the distinction between visible and non visible spectrum's of light, and the additional information they might provide.
if I understand correctly, the implied context would be that if I were reacting to something affecting the "visual" aspects of the brain, (Ie. retinal deterioration or sensitivity, brightness sensitivity, etc) then the invisible wavelength's should not affect me and we would then have a definitive "proof" that one mechanism or the other were responsible.
One could continue in this line of thinking to include that ..."If the subject was in fact being similarly affected by non visible wavelengths of radiation, then one could conclude that the subject would have experienced an entire lifetime of unexplained nausea and discomfort related to natural exposures to these forms of radiation.
Since I don't have one of those lasers anyway, I think I'm going to re examine some of my earlier conclusions utilizing the "Holmes Doctrine of investigation."
Thanks again.