Vision care benefit plans: understanding the complexity of current and emerging third party programs.
D006264:Health Benefit Plans, Employee / Q000191:economics / Q000639:trends*; D006801:Humans; D007348:Insurance, Health / Q000639:trends*; D009907:Optometry; D014481:United States; D014786:Vision Disorders / Q000628:therapy*; D014785:Vision, Ocular