Crizal is the toppest lenses product through over the world. Where the lenses from the Crizal were made by very top most hygenic glass and also with fiber . The quality of the lenses from Crizal were amazing and also Crizal provides many other advantages from those lenses like they protect from ultra violet rays, scratch proof, dust proof, water proof, night lightening, and also the hard lense which was unbreakable. The quality from those lenses was really fantastic. There is no chances for increasing power of sight while using this. This company have very good perfomance in making lenses. Where is price is little bit more but according to the product its fine.
I suggest you guys to try this.