contact lense mix up
July 18, 2011 7:33 AM Subscribe
I have Ciba vision Air Optix Aqua 1 month disposable contact lenses and have mixed them up. I use -1.75 for my left eye and -1.50 for my right, 8.6/14.20 size. On the actual lens of one of them it says "CIBA x647" and on the other "CIBA x648", which lens is for which eye?