The Acuvue 2 contact lenses by Johnson & Johnson can be worn for up to 14 days and are made from etafilcon A hydrogel with a water content of 48%, which guarantees an excellent supply of oxygen to the wearer's eyes. Being high quality lenses, Acuvue 2 lenses have proven over years of usage that they are a reliable and successful solution. They have a thin edge and are therefore comfortable to wear for long periods of time. They also employ a 123 labelling system, which helps the user to insert them correctly, and 99% UV B and 86% UV A filters, which protect the cornea and the inner eye from harmful UV radiation.