Blue Light – Potential Hazard to Vision
str. 82 – 85
Autorzy: Ewa Goździewska 1 , Karolina Kaźmierczak 2 , Grażyna Malukiewicz 2
1 Studenckie Koło Naukowe Katedry i Kliniki Chorób Oczu Wydziału Lekarskiego Collegium Medicum w Bydgoszczy
Uniwersytetu Mikołaja Kopernika w Toruniu
Opiekun Koła: dr n. med. Karolina Kaźmierczak
2 Katedra i Klinika Chorób Oczu Wydziału Lekarskiego Collegium Medicum w Bydgoszczy Uniwersytetu Mikołaja Kopernika w Toruniu
Kierownik: prof. dr hab. n. med. Grażyna Malukiewicz
Summary: The lighting industry has rapidly change since the discovery of the light-emitting diodes (LEDs) and especially from the time when the energy-effective blue-light LED was coupled with a yellow phosphorus coating to produce the white-light LED. The LEDs are widely used not only for illumination of domestic and public environments but also are present in many electronic devices, particularly for screen backlighting in TVs, smartphones and laptops. Yet it is known that the LEDs are aging, as their physical features degrade over time, primarily through bleaching of the phosphorus shield. Recent studies on animals and cell models proved that the short wavelength visible (blue) light exposure on the retina induces the oxidative stress.
The authors analyze the blue-light induced oxidative stress, a role of the retinal microglia and Müller cells and the endoplasmic reticulum stress response. The possible connections of these factors with the pathogenesis of age-related macular degeneration were also discussed. The problem of excessive blue-light emission was noticed and given the term “blue-light hazard”, which indicate that more intensive studies as well as more strict law regulations in this matter are essential to protect the eye health of people worldwide.