Watch out for broken eyes because of glasses watching 3D movies

The wave of 3-D (3D) films began to penetrate Vietnam. Technology experts and doctors warn that if you don't use eyeglasses to watch 3D stereos correctly, it will affect your eyes.

Floating 3D movies are movies that, when viewed, must use special glasses to watch. With the appropriate glasses and film, viewers can see images in vivid three-dimensional space. Currently, in Ho Chi Minh City, there are many shops selling 3D DVDs with eyeglasses to watch movies.

Ms. HTMai, a store of 61 Huynh Thuc Khang, District 1, said dozens of customers came to buy 3D DVDs every day. The price of film disc with eyeglasses is not too high, only 50,000 VND.

On the internet, there is also a pledge to sell 3D movies with glasses with a statement "absolutely safe for the eyes". In addition, there are instructions on how to make 3D glasses simply by using a frame with two red and blue cellophane paper to make lenses (left eye is red, right eye is blue).

Doctors strongly recommend that you do not use 3D glasses when blurring occurs.Photo: Aries

It is also possible to use colored markers (writing board) on mica or clear plastic or glass or real lenses. However, members of the HCM City Young Astronomical Club said that making standard 3D glasses is not as simple as that.

According to Dat Viet, most 3D DVDs sold with glasses have no inspection stamps. Many customers reflected, buying a 3D disc to go home to see if only one part of the floating image was blurred.

Mr. Nguyen Anh Tuan, Ho Chi Minh City's Young Astronomical Club explained, in principle, fixed glass is a red color, while blue has many types: blue, blue .

The reason for having two colors is for the two eyes to look at two different images, creating a three-dimensional effect. If used incorrectly or in a non-standard color, the image will be blurred. Glass bought from the US has standard color, there is no color blur as glass bought in Vietnam.

'In the US, 3D glasses are sold at science organizations like NASA and National Geography for $ 1 each. NASA also has a website for making glass. However, try to follow the instructions, find all kinds of materials, from glossy paper to mica but the quality of glass is only temporary but not as standard as the glass purchased in the centers above , 'Tuan said.

Dr. Diep Huu Thang, Head of Corneal Department, HCMC Eye Hospital also recommends, be careful with all types of eye glasses. If the glass has blur, it should not be used to avoid eye damage.

Mr. Tuan added that members of Ho Chi Minh City's Young Astronomical Club have watched 3D at glass houses many times from the US. Glass bought from the US has standard color, there is no color blur as glass bought in Vietnam.