LASIK or Lasik , commonly referred to as laser eye surgery, is a type of refractive surgery for the correction of myopia hyperopia and astigmatism. Lasik is performed on the front clear layer of the eye known as the cornea, so it never changes the eye color. Eye color is a polygenic phenotypic character. The pigmentation of the eye’s iris and the frequency-dependence of the scattering of light are the 2 distinct factors which determine eye color. Also, eye color is various because of different environment and genes. We often see blue eyes people in Europe, while dark eyes and brown eyes are commonly seen in Asian and Africa. However, with technology development, people can changing eye color through wearing colored contact lenses.. Red, blue,dark, gray, green, even purple are all can be selected. Many Hollywood stars also chose colored contact lenses to help with acting perfectly.