Figure 2.
The concentrations of MMP-2 (a) and MMP-9 (b) in tears from patients with dry eye and normal controls. Values were presented as mean ± SD. ∗∗Significant difference with P < 0.001.
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.