Thanks for your all your help.

I have a pair of gunnar optiks. In short, I don't think theres much better in terms of lcd glasses. Sadly, these too have had no effect on lessening the headache I get. The lenses are coated with anti-glare and melanin compounds, sure my eyes feel fresher but the headache remains the same.

I definatley now think that this has something to do with the refresh rate and I might purchase the best in terms of that. Currently I suspect it is the 120hz screens. Also, I read there are different types of lcd panel. i.e IPS, VA, and TN based LCD panel technology. I wonder whether or not this would make a difference? Such a shame OLEDs are still in there infancy otherwise I would have bought one of these.

If all the above fails I guess I have to endure it further until a time when new technologies become mainstream. I guess I am just one of the unlucky ones, to have been cursed with such an annoying illness ( I say illness because thats simply what it is, sadly it seems there's no known cure!).

Thanks for your help and support!