Are you asking UNIT this question? I didn't notice him or her saying anything about "years of training and thousands of eyes fit for all types of contact lenses."

Me, personally, I don't believe that "1-2 in only 1000" is that big of a risk. I wonder if those 2 in 1000 people who developed microbial keratitis in the study carefully cleaned their contacts as directed by their eye doctors?

Nothing is risk free. So I would conclude the matter by saying that sleeping in extended wear contact lenses does carry a risk, but it's not a very high risk. Especially since I would only have a maximum of six opportunities to sleep in a given pair of Acuvue Oasys contacts lenses.

If I had 500 lottery tickets laid out in front of me, one of them a million dollar winner, and I was asked to choose only six tickets, I don't think I would quit my job before choosing my tickets.