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.
Casas VE, Kheirkhah A, Blanco G, Tseng SC.Casas VE, et al.Cornea. 2008 Feb;27(2):196-201. doi: 10.1097/ICO.0b013e31815ba1ae.Cornea. 2008.PMID: 18216576
Kheirkhah A, Johnson DA, Paranjpe DR, Raju VK, Casas V, Tseng SC.Kheirkhah A, et al. Among authors: casas v.Arch Ophthalmol. 2008 Aug;126(8):1059-66. doi: 10.1001/archopht.126.8.1059.Arch Ophthalmol. 2008.PMID: 18695099Free PMC article.