Bili light

Infant undergoing bili light therapy in a United States maternity ward.

A bili light[1][2] is a light therapy tool to treat newborn jaundice (hyperbilirubinemia). High levels of bilirubin can cause brain damage (kernicterus), leading to cerebral palsy, auditory neuropathy, gaze abnormalities and dental enamel hypoplasia. The therapy uses a blue light (420–470 nm) that converts bilirubin into an (E,Z)-isomer that can be excreted in the urine and feces.[3] Soft goggles are put on the child to reduce eye damage from the high intensity light. The baby is kept naked or only wearing a diaper, and is turned over frequently to expose more of the skin.[4]

Conventional bili lights shine from above the baby. A biliblanket consists of a fiber-optic blanket designed to transfer the light from a lamp unit all around the baby's body, and is more commonly used at home.

  1. ^ "Bili lights". Edmonton Journal. 2019-11-04. Retrieved 2020-12-23.
  2. ^ "Bili lights". University of Maryland Medical Center. Archived from the original on 2014-08-19. Retrieved 2014-08-15.
  3. ^ McDonagh AF, Palma LA, Lightner DA (April 1980). "Blue light and bilirubin excretion". Science. 208 (4440): 145–151. Bibcode:1980Sci...208..145M. doi:10.1126/science.7361112. PMID 7361112.
  4. ^ "Bili lights". MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. Retrieved 22 January 2023.