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.
Retinal vessel oxygen saturation in arterioles (red) and venules (blue). There was an increase in both arteriolar and venular oxygen saturation in MCI patients when compared with healthy individuals. Abbreviation: MCI, mild cognitive impairment.
