If you're at a normal viewing distance from the screen and have decent eyesight, you should be seeing Albert Einstein.

如果你离屏幕的观看距离合适且视力不错，你应该会看到爱因斯坦。

And symptoms can be worse with bad lighting, glares, poor posture, preexisting vision problems, improper viewing distances, and the longer you spend looking at your screen.

如果存在光线不好，强光，姿势不对，先前存在视力问题，或观看距离不适当，以及使用屏幕更长的时间等问题，那么症状会更加严重。