title: An overview. A year of challenges.
mesh_terms: D000368:Aged; D006077:Government Agencies; D006801:Humans; D007883:Legislation, Medical; D006278:Medicare; D009907:Optometry / Q000592:standards / Q000639:trends*; D011641:Public Relations; D012955:Societies, Medical; D014481:United States; D000078329:Workforce