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.
Mean discrimination thresholds for each group. Icons illustrate the feature being tested. Error bars represent 95% confidence intervals. Asterisks indicate significant difference in discrimination thresholds between AMD participants and controls (pairwise comparisons; P < 0.05).
