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Why are surgical clothes usually green? In order to avoid the doctor's visual fatigue

In the past, we used to call doctors' white coats'. However, at present, doctors in the operating room of the hospital no longer wear white coats, but green ones. This is a measure to eliminate the effect caused by visual complementation of human eyes. So why are surgical suits green? Do you know why?

When human eyes watch a color for a long time, the optic nerve is easy to be stimulated and tired. In order to reduce the fatigue, the optic nerve will induce a complementary color to do self-regulation.

For example, after staring at a table drawn in bright red on a white paper for a long time, and then turning to another blank paper, you will find that there is a same table on the white paper as just now, but its color turns to light green, so the complementary color of red is light green. In the process of surgery, the doctor always sees bright red bloodstains in his eyes. As time goes on, if he occasionally turns his eyes to his companion's white coat, he will see spotty bloodstains, which will confuse his vision and affect the effect of surgery. Using light green material to make surgical clothes can eliminate the green illusion and ensure the smooth operation.

Therefore, now the medical staff in the operating rooms of hospitals are no longer wearing white coats, but green coats.