Studies have found that prolonged screen use weakens your visual functions and can cause eye strain.

研究发现，长时间使用屏幕会削弱你的视觉功能，并可能导致眼睛疲劳。

The new technique aims to restore visual function at the late stages of the disease, by injecting a harmless virus that has been modified to carry the genetic instructions for making a light-responsive algal protein, into the eye.

这项新技术旨在通过将一种无害的病毒注射到眼睛中来恢复疾病晚期的视觉功能，这种病毒经过修饰可以携带制造光敏藻类蛋白的遗传指令。