An official website of the United States government
Here's how you know
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.
The linear regression of the relation between the compensation component (F) and the magnitude of anterior corneal aberration for both astigmatism and coma. AD, advanced KC; MI, mild KC; MO, moderate KC; NO, normal.