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.
Bukowska DM, Wan SL, Chew AL, Chelva E, Tang I, Mackey DA, Chen FK.Bukowska DM, et al. Among authors: chen fk.Retina. 2017 Jan;37(1):124-134. doi: 10.1097/IAE.0000000000001130.Retina. 2017.PMID: 28005720Free article.