Decades ago,men`s and women`s eyeglasses are divided clearly,because there is a certain androgyny in the fashion world meant men's and women's clothing and accessories took cues from one another.However,in the recent years, that philosophy has experienced a dramatical change. Styles sauntering down the men's and women's fashion runways are much more distinguishable as masculine and feminine. Prescription eyeglasses,have also share the same way of development.So now a increasing number of uni*** eyeglass lenses appeared.It has become a new fashion.