Figure 2.
Histogram of vertical deviations in 5 prism diopter bins for adjustable (top) and non-adjustable (bottom) groups.
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.