If you have not been to an eye doc in the last 6 months go get fitted and let him know you are a pilot. If you can, find an eye doc that is a pilot. I got my new contacts and they tuned me into 20/15 with astigmatism's and got me a different type lens that retains its moisture longer than an average lens.
I would also recommend monthly disposables instead of 2 week. They are a bit tougher plastic and last a bit longer.
All things to consider so that is why I say see your doc first.