I have been wearing these for many years. I find that when allergy season is bad or the humidity in the house is very low I have to put drops in my eyes in the morning.
If you have a real crying jag the protein deposits become terrible. You can clean them like you do regular lenses. I do have to do this sometimes even when I haven't been crying!
I also find that I need to give my eyes a "break" every so often....in other words I go about 72 hours without them every month or so....
Hope this helps.
I love being able to see the alarm clock in the middle of the night...don't you?