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.
Marsh-Tootle WL, Corliss DA, Alvarez SL, Clore KA, Daum KM, Gordon A, Houston G, Perry FF, Swanson MW.Marsh-Tootle WL, et al.Optom Vis Sci. 1994 Oct;71(10):593-603. doi: 10.1097/00006324-199410000-00001.Optom Vis Sci. 1994.PMID: 7877802
Marsh-Tootle WL, Russ SA, Repka MX; National Expert Panel to the National Center for Children’s Vision Eye Health.Marsh-Tootle WL, et al.Optom Vis Sci. 2015 Jan;92(1):17-23. doi: 10.1097/OPX.0000000000000444.Optom Vis Sci. 2015.PMID: 25562477Free PMC article.
Rutstein RP, Marsh-Tootle W, London R.Rutstein RP, et al.Optom Vis Sci. 1989 Aug;66(8):487-91. doi: 10.1097/00006324-198908000-00001.Optom Vis Sci. 1989.PMID: 2771338
Marsh-Tootle WL, Alexander LJ.Marsh-Tootle WL, et al.Optom Vis Sci. 1994 Mar;71(3):174-81. doi: 10.1097/00006324-199403000-00005.Optom Vis Sci. 1994.PMID: 8196942