Fig 7. Regression graphs presenting Spearman´s correlation coefficient between Perkins applanation tonometer (PAT) and corneal clouding.
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.