FIGURE 3.
Forest plots for head-to-head comparisons of SMD of vision score change. Horizontal lines indicate the range of 95% CI.
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.