Figure 1.
Pentacam difference map showing serial changes in sagittal curvature in an 11-year-old patient at preaccelerated corneal collagen cross-linking and postaccelerated corneal collagen cross-linking (6 months, 1 year, and 2 years).
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.