The Age of White: A Symbol of Purity (and Problems)

For centuries, the image of a doctor was synonymous with white. In the late 19th and early 20th centuries, as hygiene became paramount, white coats and uniforms became standard in hospitals, symbolizing cleanliness, purity, and scientific rigor. However, the bright, stark white, especially under the intense operating room lights, soon presented a glaring problem for surgeons.

The Blinding Effect and Ghostly Afterimages

Staring at brilliant white surfaces for prolonged periods caused significant eye strain and headaches for surgeons, sometimes leading to a temporary 'snow blindness' effect as their eyes struggled to adjust. Even more problematic was a phenomenon known as 'afterimages.' After intensely focusing on the red blood and tissues of a patient during surgery, when a surgeon glanced away at a white surface, their eyes would briefly perceive distracting green 'ghosts' of the red image. These visual distortions could interfere with precision and concentration during delicate procedures.

The Soothing Shift to Green and Blue

Around the early 20th century, a pioneering doctor reportedly switched to green scrubs, recognizing their benefit for eye comfort. By the 1960s and 1970s, green and blue surgical attire became widely adopted, and by the 1980s, they were the standard in operating rooms globally. These colors are complementary to red on the color wheel, meaning they help 'reset' the surgeon's eyes, reduce afterimages, and enhance their sensitivity to the subtle shades of red in human anatomy. This choice not only eased visual fatigue but also made blood stains less visually overwhelming and easier to ignore, contributing to a calmer operating environment.