Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A LASIK procedure with a femtosecond laser and an excimer laser: a) The laser beams are focused, under computer guidance, onto a point lying at a precisely calculated depth (femtosecond laser). b) A flap is created by the concentration of many thousands of individual laser pulses in a single plane. c) The flap is lifted, and the refractive error is corrected with the argon fluoride excimer laser. d) Finally, the flap is repositioned.
