Figure 3.
Bar graph showing the percentages of cases where the nasal quadrant did or did not follow the expected trend of the ISNT rule in disc photos. (Abbreviations: I = inferior; N = nasal; S = superior; T = temporal)
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.