Why operating theatres require special lighting
Operating theatres require specialist lighting for a couple of reasons, correct colour temperature and shadow control.
Surgeons rely on the white tone for clarity and to distinguish specific tones. They need to distinguish these different tones of flesh colours while performing surgery. If the light were to have tones of red, blue, or green it can be misleading and change the appearance of the patient’s tissues. Being able to see the flesh tone clearly is vitally important to their work and patient safety. These are called colour temperatures and they're measured in kelvins.³
Shadows are another factor that can interfere with a surgeon’s perception and accuracy while performing surgery. There are contour shadows and contrast shadows. Contour shadows are a good thing, they help the surgeon distinguish different tissues and variations. Contrast shadows on the other hand cause a problem and obstruct the surgeons’ view.
This leads us to the type of surgical lighting used today that is considered the gold standard.