Jay wrote:.... various things and also.....
But where there is a man-made chemical; and an Eye....I personally would err on the side of caution. But thats me!

Yeah - that's why I don't have anything to do with commercial contact lens cleaners!!!!
Seriously...... you are supposed to *rinse the cleaner off* after using it.
Whether it someone sold for contacts, washing up liquid, or whatever.
So it shouldn't be getting inyour eye at all.
My personal experience has been that the washing up liquid rinses off again OK, and the contact lens cleaner I've tried, I've rinsed and rinsed and a gallon or so of water later I can still smell the cleaner on the lens.
Maybe they have better formulations now, but as I've never had any problems with the washing up liquid, I'm not going to change.
for that matter, I've also at times used body shop shower gel, liquid soap from the loos at work, and various other things, and never had a problem with them. OK, so I'm lucky......
Rosemary