The thick glasses Hillary Clinton has been wearing in public since returning from a concussion and blood clot last month are the result of lingering effects of her health problems, a Clinton aide confirms. "She'll be wearing these glasses instead of her contacts for a period of time because of lingering issues stemming from her concussion," said spokesman Philippe Reines. "With them on she sees just fine." During more than five hours of testimony before Congress Clinton could be seen wearing glasses that appeared to have a thick left lens with lines across it. Reines did not specify what type...