I don't know if anyone can help but here goes:

Over the last few days I have been having problems with my eyesight, the best I can describe it is like the flashing pixels in a computer/tv - my whole sight is like this. It's not blurred in any way, nor is there any really bright flashing lights or floaters. It's just as if my whole vision is constantly flashing little dots.

I've been to an eye casualty unit and they said there is nothing wrong with my eyes, well at least nothing serious...

Does anyone know what this is and what I can do about it??

Many thanks,