I changed to this lens, after I got the Air Optics problems in the form of incompatibility (after about six months.) After I had tried several varieties, I stayed with these hanging. Now certainly more than a year in use. Throughout the month, they are comfortable to wear without the bothersome. Surely I see you at the end of the month a little more than the beginning of the month but that's so far gone to me with all sorts so. The Biofinity beat compared very well! I'll use them indefinitely and adapt this review, provided that this should ever change.