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Illuminance of neonatal units
J Robinson1, M J Moseley, A R Fielder
1Department of Ophthalmology, University of Birmingham, Birmingham and Midland Eye Hospital.
Archives of Disease in Childhood
|July 1, 1990
Summary
Neonatal unit lighting is often too bright, especially in high-dependency areas. Further research is needed to determine safe light exposure levels for infants, considering both environmental and biological factors.
Area of Science:
- Neonatal Intensive Care Unit (NICU) environment
- Photobiology
- Pediatric Ophthalmology
Background:
- Artificial lighting in neonatal units can impact infant well-being.
- Understanding illuminance levels is crucial for optimizing the NICU environment.
Purpose of the Study:
- To measure and analyze illuminance levels in seven neonatal units.
- To compare light intensity between high-dependency and low-dependency areas.
- To assess the impact of time (day/night) on lighting conditions.
Main Methods:
- Direct measurement of illuminance (brightness) in lux.
- Data collection during both daytime and nighttime.
- Comparison of light levels across different unit zones.
Main Results:
- Mean illuminance was 348 lux (fluorescent) and 470 lux (daytime).
- High-dependency areas were consistently brighter than low-dependency areas.
- Reduced nighttime lighting in low-dependency areas averaged 50 lux in specific units.
Conclusions:
- Neonatal units may exceed optimal lighting levels, particularly in critical care zones.
- Variability in lighting exists between units and areas within units.
- Further research is essential to establish safe ocular light exposure for neonates.