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.
Ocular ischemic syndrome (OIS) development. OIS is caused by blocking the ophthalmic artery, the first branch of the internal carotid artery. CCA, the common carotid artery; ICA, the internal carotid artery; ECA, the external carotid artery. Image made with graphics from ©BioRender (biorender.com).
