1/22/2024 0 Comments Lg phoenix 3 notification light![]() ![]() Many studies have reported that LED-associated retinal toxicity has wavelength dependency-blue wavelength can induce more functional damage than green or red wavelength 3, 4. Both retinal pigment epithelium (RPE) and photoreceptors can be damaged by LED light. Previous studies have shown that LED light induces oxidative stress and stress-response pathways, which result in retinal cell death 4, 9, 10. The use of OLED in lighting and various display equipment is increasing in recent times. Because it produces less heat and glare, thus decreasing eye fatigue in users, OLED is considered a human-friendly light source 8. ![]() It is a next-generation light source that can help produce lighter, thinner, and flexible-lighting panels 7. Organic LED (OLED) is an LED containing an organic-compound emissive electroluminescent layer that emits light in response to electric current 6, 7. Despite the several advantages of LEDs, many researchers have reported that light from LED sources can cause retinal toxicity 2, 3, 4, 5. Recently, LED light sources were introduced in several vitrectomy machines for endo-illumination of the retina 1. Light-emitting-diode lamps are widely used because of their long lifespan and excellent electric efficiency. Light-emitting diode (LED) is a semiconductor device that emits light when an electric current is passed through it. The higher blue-wavelength energy of LED light might be the reason for its higher toxicity relative to OLED. Although OLED exhibits certain ocular toxicity, it can be less toxic to eyes than LED. The electroretinography response was significantly lower in light exposure group, and there was significant difference between LED- and OLED-treated mice. Moreover, ONL thickness was significantly lower in the LED group than the OLED group. Although no gross morphologic changes of the eyelid or cornea were found in LED- or OLED-exposed mice, oxidative stress on ocular surface was significantly increased, and the outer nuclear layer (ONL) was significantly shorter in both light-treated groups than the control group. In corneal and conjunctival epithelial cells, the levels of reactive oxygen species production and interleukin -8 expression after white light-emitting diodes (LED) exposure were significantly greater than those after OLED exposure. We investigated morphologic and functional changes after OLEDs exposure of human ocular cells, including corneal, conjunctival, lens, and retinal pigment epithelial cells, and mouse eyes. However, the effect of OLEDs on human health has not been studied yet. The use of organic light-emitting diodes (OLEDs) has rapidly increased in recent years.
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