The explanation of this phenomenon in traditional Chinese medicine is: 1. Hepatitis Wang, liver yang hyperactivity, liver yang hyperactivity performance and dizziness, headache and so on. Most of them are caused by anger and irritation. The liver is open to the eye, so the first thing that happens when liver yang is overactive is that the eyes feel it.

2. Weakness of qi and blood. Normally weak qi and blood, can not be up to feed the eyes, resulting in blurred vision.