Queratoplastia refractiva.

Barraquer was the first to sculpt corneal stromal tissue to change corneal curvature. He developed a procedure which he called "keratomileusis," (sculpting of the cornea). This involved ressecting a disc of anterior corneal tissue, which was then frozen in liquid nitrogen, placed on a modified watchmaker's lathe and milled to change corneal curvature. See also  Barraquer, "Autokeratoplasty, with optical carving for the correction of myopia (Karatomileusis)," An. Med. Espec. 51 (1965) 66-82.