I'm afflicted as well, but mildly. It takes a transition to a lot of glare to cause the sneeze, and often I can hold it off.
As for the site as a whole, I'd be far happier if they included some differentials for their diagnoses. If you don't know, doctors try to always come up with a diagnosis and the differential. The diagnosis is what you think it is. The differential what you'd guess it to be if the diagnosis is wrong. People do a better job of examining things closely when they're trying to decide between similar things, hence the value of the differential.
For instance look at what they have for [link|http://www.mybodylanguage.co.uk/allergyrings.htm|dark rings under your eyes]. Yes, it possible that that is allergies. But the differential damned well better include not enough sleep, and any decent doctor will look for ways to tell those two possibilities apart.
Cheers,
Ben