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.
Risk of progression to advanced age-related macular degeneration (in at least one eye in patients with both eyes at risk) based on repeated-measures logistic regression analysis of Age-Related Eye Disease Study (AREDS) participants randomized to the AREDS combined treatment group (antioxidants plus zinc [AZ]) or placebo (P), by simplified risk score assigned at baseline.
