I have worn contact lenses for about 14 years now and have always had the ones that need changing every month. Recently i decided that i would wear my glasses a bit more and have the Johnson & Johnson one day acuvue for Astigmatism instead. I really did not get on with them, i was given a trial pack of 6 pairs and of those about 3 of these tore when i tried to take them out, i was left with half a contact lense in my eye that i then had to find and get out... ouch! I also found that they moved alot and sometimes i'd be driving and notice that the vision in one eye was blurred, i'd rub my eye and move the lenser and it would be back. The main issue for me was that they are just too thin, i find the monthly lenses much more durable.