Diana, I have used Renu before, so I just checked but that's not what I'm using at the moment. I think I'll stay away from it now though! Thanks for the information.
I put in the eye drops when I got home, and they were itching a bit so I laid down, closed my eyes, and fell fast asleep
My left eye (that just seemed to start this morning) looks white again, but just with a bit of redness still showing. The right eye is still pretty red.