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.
Day M, Strang NC, Seidel D, Gray LS.Day M, et al. Among authors: gray ls.Ophthalmic Physiol Opt. 2008 Jan;28(1):91-5. doi: 10.1111/j.1475-1313.2007.00522.x.Ophthalmic Physiol Opt. 2008.PMID: 18201340
Day M, Seidel D, Gray LS, Strang NC.Day M, et al. Among authors: gray ls.Vision Res. 2009 Jan;49(2):211-8. doi: 10.1016/j.visres.2008.10.010. Epub 2008 Nov 22.Vision Res. 2009.PMID: 18992269Free article.
Day M, Gray LS, Seidel D, Strang NC.Day M, et al. Among authors: gray ls.J Vis. 2009 Sep 4;9(10):5.1-13. doi: 10.1167/9.10.5.J Vis. 2009.PMID: 19810786Free article.