Acuvue oasys is a contact lens which uses hydraclear plus technology to deliver all day comfort to even the driest eyes hydraclear plus generates a unique wetting agent which maintains the comfort of the contact lens acuvue oasys is also a high uv blocking contact lens which is ideal for wearers who spend a lot of time outdoors acuvue oasys should be removed and cleaned before going to sleep and it is recommended that they are replaced with a fresh pair every two weeks