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.
SMILE: Small-incision lenticule extraction; FS-LASIK: Femtosecond laser-assisted LASIK. aSignificant difference between the SMILE group and FS-LASIK group; bSignificant differences compared with preoperative level.
