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.
Representative strains before (black) and after (red) CXL treatment in porcine and human corneas. The level of strain reduction was different in different eyes, and the cases from left to right show examples of substantial strain reduction to small/minimal strain reduction. Average strain before and after CXL in the two groups are shown on the right.
