Are Blue Light Glasses Really Effective?
Blue light glasses are a type of eyewear designed to protect your eyes from the potentially harmful effects of blue light emitted by digital screens and artificial lighting sources. Blue light is part of the visible light spectrum and is emitted by various sources such as smartphones, computers, tablets, LED lighting, and even the Sun.
Why Blue Light Glasses were Made?
Blue Light Glasses were designed as shields for the eyes to protect them from the damaging rays of screens. These glasses gained popularity during the pandemic years. As everyone was working from home and continuously staring at the screen was harmful these glasses gained popularity. Even a recent study shows that their effects on reducing digital eye strain and improving sleep quality are limited.
Study of Laura Downie
Laura Downie is an associate professor in optometry and vision sciences at The University of Melbourne. She reviewed these glasses and examined their impact on the quality of sleep, vision, and eye health. According to the results, there is a lack of evidence supporting the efficacy of these glasses. The overall consensus suggests that the glasses have a negligible impact on eye strain, despite a few short-term studies showing some relief.
According to Experts
These blue light glasses contribute to the underwhelming process. Firstly the screen emits a low level of blue light and the glasses themselves only block a low percentage of this lightThe main source of blue light is the sun itself and these glasses only block a small percentage of screen light and these glasses can’t block the rays of the sun.
Do These Glasses Help in Improving the Quality of Sleep?
Six Studies have been done on these glasses and their effect on sleep. Studies indicate potential benefits for specific groups, such as pregnant women or people with certain mental health conditions, but their general applicability remains undetermined. Blue light and sleep disruption are primarily linked to natural circadian rhythms, which have primarily been studied in animals. Downie noted that the patients in the studies suffered from sleep disorders or mood disorders. According to her, the interventions weren’t evaluated in the general population. “So we can’t make any statement around the potential utility in relation to sleep in general, healthy adults.”
Statement of Doctor Bhanuprakash Kolla
Doctor Bhanuparkash Kolla a sleep Medicine specialist doctor at the Mayo Clinic, suggests that screen content and overall sleep habits have a greater impact on sleep quality than blue light exposure.
Conclusion Of Experts
The experts concluded that blue light glasses may not do any harm but these blue light glasses also do not provide benefits.