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.
Fundus autofluorescence imaging showing a mild ring of ↑ AF signal shown by the yellow arrow (a) 4-year follow-up image shows ↓ foveal AF (increased atrophy) surrounded by flecks developed since the first image (see red arrow) and a ring of ↑ AF signal indicated by the yellow arrow (b).
AF, autofluorescence.
