Help with an eye problem?

[Kyobanim]

Sorry, no graphic pics.

I've seen a doc about this but no joy. Here it is.

I wear glasses, progressive lenses. When I get a cold or flu my left eye "blurs out". It's like I'm not wearing glasses. The right eye is fine. Seems to occur when my sinuses are affected with whatever illness I have. I can see no discoloration in the eye, no swelling that I can tell. Plenty of moisture.

My GP says there's nothing wrong, eye doc says he sees nothing. No glaucoma or any abnormalities. But this drives me crazy. Problem goes away usually a week or so after the illness does. It also happens if I go for several days on little sleep.

I've got to go to the eye doc next month for the checkup and new specs and I'd like to have some kind of amunition to shoot at him to get this taken care of or at least diagnosed.

Thanks