Blue double light. Improved method of phototherapy.

In newborn infants with rhesus haemolytic disease the effect of phototherapy with blue light (28 cases) on both sides of the infant was compared with the effect of traditional white light phototherapy on one side of the infant (42 cases). The number of exchange transfusions performed after the first 12 hours of life was significantly lower in the blue double light group. It is concluded that the application of blue double light may be a superior means of applying phototherapy in rhesus haemolytic disease.