I have had a breakthrough in my neverending quest for a way to cut onions without ending up in major pain with tears streaming down my face! I got an onion chopper for Hannukah, and you know what? It really DOES work!
You just quickly peel and half (or quarter if they're big) the onions (even I can manage that), stick them on the cutting grid, press down and voila - chopped onions. Because the chopped onion remains in the storage part of the chopper there is almost no odor either, and thus NO TEARS. It's even got measurement lines up to two cups so you know how much you've got without taking it out and fiddling with it.
The night we first tried it my husband and I were both cooking. I chopped up the onions then took what I needed. The rest stayed in the chopper until dh was ready. They were right out on the counter for nearly an hour and never bothered me at all. The chopper is a built bulky and you need a fair amount of force to close it, but those minor disadvantages pale in the face of tear-free onions.
I suppose those silly looking onion glasses (or even just swim goggles) would work too, but when you're done cutting you'd have to remove them and you'd have all the onion odor in the air, which seems like it would just postpone the crying.
(This is not a paid post, I just love this thing and wanted to share my find with everyone who posted on the last thread looking for solutions.)
Drop by Rocks In My Dryer for lots more great tips.