Acuvue 2 is a top quality contact lens from the well-known manufacturer Johnson & Johnson. If taken out and cleaned it can be used for two weeks and it can also be worn as a one-week extended wear contact lens which means that you wear them day as night without taking it out.
The lenses have a UV-protection class II. They block 82% of the UV-A radiation and 97% of the UV-B radiation. This makes the lenses a good complement to sunglasses, which do not always give enough protection.
A study from 2008 has shown that Acuvue 2 induces less staining than other lenses. Corneal staining can make the lens less comfortable. (http://www.clspectrum.com/article.aspx?article=102040)
Acuvue 2 Reviews