It happened again: You've misplaced your only pair of glasses. Or maybe you've run through your last box of contacts. In order to replace them, you need a new prescription, and that means, an appointment with your eye doctor.
원문출처 : http://www.cnn.com/2017/03/15/health/online-eye-exam-telemedicine-explainer/index.html
원문출처 : http://www.cnn.com/2017/03/15/health/online-eye-exam-telemedicine-explainer/index.html