According to Today's Surgical Nurse in 1998, the use of color is likely began in the early 20th century, with the goal of helping doctors vision surgery.
The green color helps the doctors to see better for two reasons. First, look at the color blue or green can be a refreshing vision of things doctors that are red, such as organs and blood of patients during surgery. Because the brain interprets colors relative to other colors.
If a surgeon looking at something red or pink, it will be familiar with these colors so that vision impaired. Red signal in the brain will fade, which could complicate the doctor see the organs and tissues of the human body. Whereas, if the doctor saw something green from time to time, he can make his eyes more sensitive to variations in the color red.
Second, because the vision doctors continuously focused on the patient's organ is red, the color red can cause an optical illusion green on a white surface, and certainly can be annoying.
This optical illusion appears when doctors shifted her gaze from reddish body tissue to something white. Green optical illusion of the patient's internal organs will appear on the white background.
This optical illusion occurs because white has all the spectrum of colors, including green and red. However, if the doctor saw the clothes green or blue, instead of white, the illusion that this would interfere with the right blend with the color of clothes and not be a distraction. This opinion is supported by Paola Bressan, researcher optical illusion from the University of Padova, Italy.
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