Mine do exactly what you are describing. The eye doctor says its probably because the composition of my tears has changed....I'm not sure I believe that. I am using enzymes daily, plus Boston Advance cleaner and Boston Simplus for overnight soaking. Why do the products not remove this protein off the lenses and keep it off. I have not had this problem before....could it be the lenses? My eyes don't feel dry so don't think it's that?