After being bombarded with Sea Spray on TomKat last year
I was looking for something too!
I now have a pair of Oakley Motocross goggles !! - simular to Ski goggles, only clear.
http://oakley.com/ostore/goggles/mx_o_frame/
These are absolutly brill
No matter how much spray hits them - inside stays dry - great.
At ANglesea last weekend, the first day I didn't take them because I thought I would be in a nice dry rib, but as you say my eyes started to water - the second day I took them with me and no watery eyes
After use - I just rinse them out.
I bought them at the local motorcycle shop - very helpfull
Looking at the Oakley website they also do a H20 pair designed for use in water (although mine are fine - and I've got mine soaked! - and cheaper too)
See them in action at
www.tomkat.co.uk - just click on the www icon below!