Figure 1.
The enclosed region by the black line shows the wedge or wing shape area of the pterygium-infected tissues. The tissues will usually grow from the medial canthus region towards the pupil, as the condition becomes more severe.
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.