Human Eye's Blind Spot Can Shrink with Training

The blind spot of the human eye can be shrunk with certain eye-training exercises, thus improving a person's vision slightly, a small new study suggests. In the study of 10 people, researchers found that the blind spot — the tiny region of a person's visual field that matches up with the area in the eye that has no receptors for light, and hence cannot detect any image — can shrink 10 percent, with special training. That amount of change "is quite an improvement, but people wouldn't