Eye protection lamps are often marketed as being free from stroboscopic effects, and instead use high-frequency flashes. The light emitted by these lamps appears brighter, softer, and more stable compared to traditional lighting, which can give users a more comfortable visual experience. Many believe this helps reduce eye strain. However, the reality is that such high-frequency flashing may actually be harmful to students' eyes and skin over time.
Eye protection lamp: high frequency flash of light source seriously deepens myopia
The key selling point of these so-called "eye protection" lamps is that they don't flicker like traditional fluorescent lights. To achieve this, they use high-frequency electronic ballasts that adjust the current at several thousand or even tens of thousands of hertz per second. This means the light is flashing at an extremely fast rate—too fast for the human eye to detect. As a result, it appears steady and smooth, making it feel more comfortable for long-term use.
However, despite the lack of visible flickering, the high-frequency light may still have negative effects on the eyes. Studies suggest that prolonged exposure to such light sources could contribute to increased eye fatigue, and in some cases, even worsen conditions like myopia. Additionally, the electromagnetic radiation produced by these lamps might affect the skin over time, especially if used for extended periods without proper breaks.
In conclusion, while eye protection lamps may seem like a better alternative to traditional lighting, it's important to understand that their benefits are not always as clear-cut as advertised. Always consider using natural light when possible, and take regular breaks to protect your vision and overall health.
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