My eyes!!!!
Mine just usually tear up for the first few minutes, then seem to settle down...can't say it's much of a problem for me. What kind of sunglasses? You getting enough coverage?
"What would life be if we had no courage to attempt anything?" - Vincent Van Gogh
My Blog: http://agingsuperhero.blogspot.com
I wear okley wire frames...
Wire frames don't do so well for me at keeping the wind out of the eyes.
I'd go with something like this: 
BTW, Scott Tinley is a professor at my school! :D He's so rad.
Look at those bars on Tinley's bike, talk about rad. No pads?
There are sunglasses made by Wiley X which look just like sunglasses but have an added feature of having a small ring of foam around the lenses inside the glasses so there is a little bit of a seal between the lens and the eyes. It helps keep the wind out for motorcycle riders as well as soldiers who operate in desert environments.
http://www.technical-gear.com/sunglasses/by_brand/wiley_x/ink.htm
Ok so vegas is not all that cold...but when im riding...my eyes just water!!! Because of all the wind. I do wear sunglasses when I ride but what do you all do during the colder / windy months?
Sniff.
I rode in to work this morning (as every morning) and tears were streaming down my cheeks in the cold wind -2C.
Ya gotta be tough.
PoC
"Pain doesn't last, chicks dig scars, glory is forever!"
- Shane Falco.

It's probably the cold and not adequate wraparound design on your eye protection, but it could also be allergies. Try antihistimine eyedrops. My Dr. prescribed Patanol drops and it works wonders.
Deepbluex.... those glasses look like they would work real well.
I also like your advice POC.... TIME TO MAN UP!!!!! :-)
I used to use the big Oakley's on my motorcycle (M Frame I think) but one time I used my girlfriend's smaller ones, and they worked so much better. I think it was because the lens was closer to my eyes.
My point is, it's not just about finding the biggest ones, you need to find what works for your head. The ones Deepbluex posted look like they would do the job, and they aren't exactly goggles either.
Do they make an aero helmet with some sort of visor like Ladainian Tomlinson's football helmet?
http://ladainiantomlinson.com/images/gallery/lt-pro-bowl-7.jpg
Pain is the sensation of weakness leaving the body!







Ok so vegas is not all that cold...but when im riding...my eyes just water!!! Because of all the wind. I do wear sunglasses when I ride but what do you all do during the colder / windy months?