Melissa, a 30-year-old educator, came to the emergency department with a sudden onset of double vision. She had not been in an accident or suffered any trauma and had never experienced this symptom before. However, she noted that a few months earlier, the vision in one of her eyes had become blurred and then returned to normal shortly after. She told herself it was a sign of fatigue after a period of intense work on a screen.
Your eyes could reveal the first signs of many diseases
