I've been wearing contacts for over 20 years. I've worn acuvue contacts for many years and never had an issue. I recently developed an astigmatism in my left eye, so my eye doctor prescribed these lenses for my left eye only. They irritate my eyes every time I try to wear them. They itch and hurt, until I eventually take them out and just wear my glasses instead. Also, the lenses almost always seem blurry. I've been going through these faster than I should, because I keep throwing them out and opening a new lens from the box, hoping it will be better. It never is. I could understand if they got blurry and caused problems after they'd been used multiple times, but they shouldn't be blurry right out of the package. Will not buy these again!!!!