Are anti-blue light films useful? What is the rationale?
The principle of anti-blue light film for eye protection is to absorb and convert the high-energy short-wave blue light emitted by the luminous source, which greatly reduces the irritation of blue light to the eyes, thereby achieving the effect of preventing myopia, so the anti-blue light film can also prevent myopia.
Identification method:
1. The anti-blue light mobile phone film is very particular about the workmanship, and you can choose a big brand with reliable quality.
2. The mobile phone film can be tested with an anti-blue light test light.
3. Rely on professional anti-blue light detection instruments.
Most people who watch electronic screens for a long time have this experience:
Eye fatigue and blurred vision after playing with mobile phones for a long time;
After watching the video for a long time, I feel sore eyes or even tears;
After playing the game for a long time, I feel that my eyes are afraid of the strong light environment;
The above conditions are partly due to the effects of blue light exposure on our eyes. In August 2011, Professor Richard Funk, a famous German ophthalmologist, published a report entitled “Blue Light Seriously Threats Retinal Nerve Cells” in the European Journal of Neuroscience. In particular, the light emitted by screens such as mobile phones and iPads contains a large number of high-energy short-wave blue light with irregular frequencies.
This high-energy short-wave blue light can directly penetrate the lens and reach the retina, causing the retina to generate free radicals. Free radicals can cause retinal pigment epithelial cells to die, and then cause vision damage to photosensitive cells due to lack of nutrients, resulting in macular degeneration, squeezing and shrinking the lens and causing myopia.
In 2014, the second-generation anti-blue light technology was popularized, and accessory manufacturers successively added a layer of anti-blue light coating to the protective film, which can effectively weaken the passage of short-wave blue light, thereby protecting eyesight. Tempered films made by some highly technical accessory manufacturers can reduce blue light to only about 30%. Because most of the blue light is weakened, it is normal for the screen with anti-blue light film to look slightly yellowish.
Therefore, for people who watch the screen for a long time, do not want to deepen their myopia and want to protect their eyesight, sticking an anti-blue light film is a good choice.
Post time: Sep-30-2022