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.
Histogram showing the distribution of sectors with the greatest estimated retinal ganglion cell loss (estimated using the combined structure function index (CSFI)) for healthy eyes (Top) and glaucomatous eyes with a visible localized retinal nerve fiber (RNFL) defect.(Bottom)