Recently
"Privacy film hurts eyes" has been on Weibo's hot search
Privacy is not good enough when looking at mobile phones
It makes people feel insecure
So many people want to prevent others
from seeing the contents of their mobile phones
Choose to put a privacy film on your phone
However, some netizens reported
that using a privacy film will hurt your eyes?
Recently, a Weibo netizen described his experience of eye discomfort and blurred vision after using a mobile phone privacy screen, which attracted widespread attention on the Internet and became a hot search topic.
, a netizen, said that after using the privacy screener for two or three months, he experienced eye fatigue, dark shadows and other discomforts in his eyes. After he stopped using the privacy screener, the discomfort was relieved a lot. He analyzed that this is related to the decrease in brightness and transmittance of mobile phones after using privacy films.
Screenshots from netizens
On the online shopping platform
There are many privacy film products
Sales volume is large, with monthly sales of up to 300,000 pieces
Similar to ordinary mobile phone films For example, the anti-peep film is added with an anti-peep coating, which uses the optical principle in physics. It adopts an ultra-fine shutter structure, which can reduce the range of the light reflected into the mobile phone, that is, the visibility of the mobile phone screen When the angle becomes narrower, people outside the visual range cannot see clearly, thereby preventing peeping.
Many privacy film users reported that after applying the privacy film, the screen brightness of and will decrease, and the screen brightness needs to be brightened to achieve the original visual effect.
Pictures provided by netizens
Professor Huang Zhongwei from the Department of Ophthalmology, the First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, said that there is currently no relevant research on whether privacy films can hurt the eyes, so there is a lack of evidence-based medicine.
However, from the perspective of eye health, too bright or dark a screen is not good for eye health. Moreover, the light emitted by our mobile phone screens contains blue light , and the blue light itself can hurt the eyes.
Blue light is high-energy visible light with a wavelength of 400-500 nanometers. Although it is not particularly dazzling, it has strong penetrating power and can directly reach the retina, damage retinal photoreceptor cells, and accelerate the oxidation of cells in the macular area. It is also known as the most dangerous visible light. . Therefore, many mobile phone films and privacy films also claim that they can prevent blue light. In fact, there is currently a lack of strong evidence on how effective they are. It is always good to develop scientific eye-use habits and control the time and distance of mobile phone use.
Finally, here is a list of
eye protection tips
Regardless of whether you use a privacy film
you must take good care of your eyes ~
Source of this article: News Square
