Medicare beneficiaries would get dental, vision and hearing coverage if several bills now before Congress pass. In addition, the government would get authority to negotiate prices with drug makers and create a cap for Medicare out-of-pocket spending on prescription drugs. All have cleared the necessary committees over the last couple of weeks and now await full House action. “There have been proposals over the years that would do this, but in the past they haven’t gone anywhere,” said David Lipschutz, associate director at the Center for Medicare Advocacy. “It looks like this time something could get passed in at least one chamber of Congress.” The bills are generally supported by Democrats and opposed by Republicans. This means that even if the measures get approved in the Democrat-controlled House, they would face an uphill battle in the Republican-dominated Senate.