An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Massey EL, Weston BC.Massey EL, et al. Among authors: weston bc.Cornea. 2000 Jan;19(1):108-9. doi: 10.1097/00003226-200001000-00021.Cornea. 2000.PMID: 10632019