A key goal of the Affordable Care Act is to help people get health insurance who may have not been able to pay for it before. But the most popular plans – those with low monthly premiums – also have high deductibles and copays. And that can leave medical care still out of reach for some. Renee Mitchell of Stone Mountain, Georgia is one of those people. She previously put off a medical procedure because of the expense. But as the threat of losing part of her vision became a real possibility, she sought an eye specialist at Emory University,...