RT Journal Article
T1 Effects of Led Light Screens on School Children Eyes
A1 Bonnin Arias, Cristina Natalia
A1 Blázquez Sánchez, Vanesa
A1 Rodríguez Alonso, Xabier
A1 Gutiérrez Jorrin, Sara
A1 Sánchez Ramos, Celia
AB Background: The increasing use of digital devices involves a potential risk for public health. Screens are generally made with LED lights, with a peak of emission in the area of visible spectrum corresponding to blue light. Given the high amount of blue light energy, several studies suggest a subsequent phototoxic damage to the retina. Blue light radiation may have greater impact on children particularly given that retina is not entirely developed at this age, larger pupillary diameters and frequent shorter viewing distances when compared to adults. Methods: The amount of blue light potentially penetrating the eye of adults and children was assessed. Light amounts reaching the eye were theoretically calculated according to measured pupillary diameters and reading distances. Results: The amount of visible radiation reaching the pupil is theoretically 1.4 times higher when using a smartphone than when using a PC. Light amount reaching the eye depends on reading distance. The shorter reading distance, the higher light amount reaches the eye. Children are likely exposed to a 40% higher light dose than adults because of their body-anatomic features. Conclusions: Exposure to LED screen devices should be particularly considered among children. Long-term effects of blue light exposure should me more carefully investigated.
PB Magnus Med Club LLC
YR 2023
FD 2023-11-09
LK https://hdl.handle.net/20.500.14352/132744
UL https://hdl.handle.net/20.500.14352/132744
LA eng
NO Citation: Bonnin-Arias C, et al. (2023). Effects of Led Light Screens on School Children Eyes. Clin Res. 4(4):20.
NO Received Date: August 5, 2023 ; Publication Date: November 9, 2023
DS Docta Complutense
RD 26 feb 2026