People who have seen 3D movies have this feeling. Sometimes it’s really thrilling to watch it. It’s just like what happens to them. It’s also amazing. So it’s more attractive to children who love movies. But is it really suitable for children? Is there any side effect? How old is a child unfit to watch 3D movie? Do you know?

3D movies may hurt your eyes. Don’t watch them when you are under 8 years old

According to a study published by the Los Angeles Times, the principle of 3D movies is that two lenses shoot images from different directions at the same time, making films. During projection, two projectors are used to simultaneously project two sets of films, so that two slightly different images are overlapped on the screen. At this time, if you look directly with your eyes, there will be ghosting. After wearing special 3D glasses, the left eye can only see the left image, and the right eye can only see the right image. The two eyes overlap the left and right images on the fundus of the eye, and the brain produces a three-dimensional visual effect.

“The stereo we see in 3D movies is different from the real stereo we usually see.” Normal people’s eyes are different in angles except for looking straight ahead, but the imaging gap is very small. The image is transmitted to the brain through the eyes, and the brain uses these gaps to feel the distance and depth, so as to produce a three-dimensional sense. 3D movie is the result of virtual simulation. To obtain this stereoscopic feeling, the viewer’s eyes need to constantly increase the adjustment force. In the dark environment, the regulation ability of eyes will decline, and excessive regulation will inevitably lead to eye fatigue, dryness, soreness, even dizziness and nausea.

Michael Rosenberg, a professor of Ophthalmology at Northwestern University’s Feinberg School of medicine, points out that watching 3D movies and playing 3D games can also cause headaches. Because the brain needs to invest more brain power to adapt to the changes of 3D effect, the bigger the stimulation is, the easier the headache will be. Uncomfortable 3D glasses are also an important reason.

It is recommended to select a slightly backward position when watching 3D movies, take off the glasses every 15-20 minutes, close your eyes and have a rest; if you feel uncomfortable or dizzy or nauseous, stop watching immediately; people who are short-sighted, farsighted or astigmatic must wear corrective glasses to watch, and those who have a difference of more than 250 degrees should wear contact lenses; before watching, check whether the glasses have any questions It’s uncomfortable. In addition, people with severe dry eye disease, eye disease and children under 8 years old are not suitable to watch 3D movies.    

Warm remind you, after all, our children are still in the golden age of visual development, try not to take them to see 3D movies often. If you are interested in children’s home electric shock prevention knowledge, please go to this safety net to find relevant information.