Preschoolers are really not suitable to watch 3D movies? Yu Honghua, deputy director of ophthalmology at Guangzhou General Hospital of Guangzhou Military Region, said that preschool children before the age of 7, stereo vision development is not yet complete, one may not see the stereoscopic effect, “look at it for nothing”; second, if a long time to watch, will indeed have an impact on stereo vision development, foreign research has proved this point. ”But parents do not have to be too nervous, although the impact exists, but the specific to see how long the 3D film will affect the child’s visual development and no relevant research to support. And after all, a movie is only an hour or so, in the middle to take down the child’s glasses to let it rest, and let it thoroughly clean hands after massaging the eyes, is also a good way to protect the eyes.” Yu Honghua said, “In fact, parents should be more alert to children wearing glasses at home for a long time to watch 3D TV, which is very harmful.” Yu Honghua, ophthalmologist from the Guangzhou General Hospital of Guangzhou Military Region, pointed out that wearing stereoscopic glasses can cause eye fatigue, and people in their fifties and sixties are relatively unaffected by the symptoms, while children are more affected. Children should be cautious about watching 3D movies. Especially preschoolers, their stereoscopic ability is still in the developmental stage, more should not see more. Older people, highly myopic patients are relatively weak, continuous viewing of 3D movies is not good. If continuous viewing, eyes can not tolerate long time focus, will feel uncomfortable eyes or dizziness, vomiting, this should stop watching, if after eye rest, headache, eye pain still can not be relieved, should immediately go to the ophthalmology consultation. In addition, patients with glaucoma and suspected glaucoma should not watch 3D movies, due to the picture realistic stimulation, hypertension, heart disease patients should not watch 3D movies.