Blue Light and Your Eyes | 合法醫療器材資訊網

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The largest source of blue light is sunlight. In addition, there are many other sources:

Blue light exposure you receive from screens is small compared to the amount of exposure from the sun.  And yet, there is concern over the long-term effects of screen exposure because of the close proximity of the screens and the length of time spent looking at them. According to a recent NEI-funded study, children’s eyes absorb more blue light than adults from digital device screens.

Almost all visible blue light passes through the cornea and lens and reaches the retina. This light may affect vision and could prematurely age the eyes. Early research shows that too much exposure to blue light could lead to:

Digital eyestrain: Blue light from computer screens and digital devices can decrease contrast leading to digital eyestrain[1]. Fatigue, dry eyes, bad light...