The first visual health group standard in the VR field is released. Do VR glasses hurt your eyes?

In the early morning of June 6, at the WWDC23 Developers Conference, Apple released more than ten software and hardware devices, among which the finale was the first augmented reality product Vision Pro. Public information shows that VisionPro is a mixed reality device that covers virtual reality (VR) and augmented reality (AR), allowing consumers to immerse themselves in a high-definition virtual world.

The prices of VR equipment from brands such as PICO, Qianhuan Sunglasses, and Thunderbird on e-commerce platforms generally range from tens of yuan to thousands of yuan. Many parents are worried that wearing VR glasses will cause damage to their children's eyes. Is VR equipment harmful to the eyes? How to use VR equipment correctly? What kind of VR glasses meet visual quality standards? It coincides with the National “Eye Care Day” Publicity and Education Week from June 3rd to 10th. Nandu Eye Health Research Institute invited relevant experts from Zhongshan Eye Center of Sun Yat-sen University to interpret this.

The price of VR equipment ranges from tens to thousands of yuan. How to choose?

Nandu Eye Health Research Institute found that on e-commerce platforms, the price of VR equipment ranges from tens to thousands of yuan. Common brands include PICO, Qianhuan Sunglasses, Thunderbird, etc.

Regarding VR equipment, many consumers ask whether it will hurt their eyes? Consumer "Yihe" said, "I will still feel dizzy after wearing it for a long time, but my eyes can handle it for an hour a day." Some consumers also mentioned that their eyes feel tired after wearing it. "As long as it's a screen, it will hurt your eyes."

How to choose VR glasses that meet visual quality standards? Does it hurt the eyes?

Professor Yuan Jin from the Zhongshan Ophthalmology Center of Sun Yat-sen University said that moderate and correct use of VR equipment will not directly cause myopia. It is very important to follow appropriate usage guidelines and maintain eye health. When people look at things, due to the different positions of the two eyes, the images they get are slightly different. This visual difference allows us to perceive depth and make things look three-dimensional. VR technology is realized by using parallax to simulate a three-dimensional effect, allowing the user's two eyes to see slightly different images.

Zhong Jing, the attending physician at Zhongshan Eye Center of Sun Yat-sen University, added that the relationship between VR and visual health has always attracted much attention. Whether it is the physical optical parameters of VR glasses or the viewing scene, they are closely related to visual health. Moderate and correct use of VR equipment usually does not directly lead to myopia. Long-term and frequent use of VR equipment may have some effects on the eyes, including symptoms such as temporary eye fatigue, dryness, eye discomfort and visual strain. It is important to follow proper usage guidelines and maintain eye health.

Zhong Jing mentioned that it is necessary to choose VR glasses that meet visual quality standards. In January 2022, China Electronics Technology Standardization Institute and Zhongshan Ophthalmology Center of Sun Yat-sen University jointly built my country's first Greater Bay Area display product visual health testing center to conduct visual health assessments for VR and other display terminals, and issued visual health certification Certificate. Provide reference for consumers to choose VR glasses.

Will children hurt their eyes when using VR glasses?

Regarding suggestions for children to use VR glasses, Yuan Jin pointed out that in addition to choosing VR equipment that meets visual quality standards, parents should also pay attention to limiting the time their children use VR equipment, preferably to about 30 minutes. If you use VR equipment too frequently and for a long time, it may cause uncomfortable symptoms such as temporary eye fatigue and dryness.

Yuan Jin reminded that improper use of VR equipment will not only cause physical health problems, but also affect mental health to a certain extent, and may lead to over-immersion, excessive emotional arousal, etc. Therefore, choose content that is appropriate for your teen’s age and development level and avoid playing violent, scary, or overly stimulating games to protect their mental and visual health.

Yuan Jin recommends that parents take their children for regular eye examinations to ensure that their children's vision is healthy and to detect potential problems at an early stage, especially if their children frequently use VR devices. Yuan Jin said that the team will soon release an ophthalmology diagnosis and treatment platform based on VR glasses. Patients can receive professional ophthalmology diagnosis and treatment in the comfort of their homes using head-mounted devices.

The first visual health group standard in the field of virtual reality is released

Virtual Reality (VR) is a computer system simulation that creates and experiences virtual three-dimensional scenes. It provides multi-sensory and multi-dimensional information. It is the next generation of universal technology platform and Internet entrance.

In January 2022, Professor Yuan Jin’s team from the Zhongshan Ophthalmology Center of Sun Yat-sen University took the lead in releasing the group standard "Virtual Reality Technology Visual Health Impact Assessment Method", which is the first visual health group standard in the field of virtual reality in my country. On May 10, the case "Establishment and Promotion of Key Evaluation System for Visual Health of Virtual Reality Terminals" was selected as one of the "Excellent Cases of Visual Health of Display Terminals" by the Ministry of Industry and Information Technology.

The group standard "Visual Health Impact Evaluation Method of Virtual Reality Technology" (No.: T/CSBME 052-2022), led by Professor Yuan Jin's team at Zhongshan Ophthalmology Center of Sun Yat-sen University, is the first visual health group standard in the field of virtual reality in my country. .

Guided by this standard, the case of "Establishment and Promotion of Key Visual Health Evaluation System for Virtual Reality Terminals" starts from the perspectives of product key photoelectric indicators, visual health/psychophysiological health evaluation indicators, etc., to construct a visual health evaluation oriented to VR technology. Model and risk assessment model, conduct multi-sensory and multi-scenario clinical evaluation of VR technology, establish test methods for different application scenarios, key parameter risk thresholds, and VR product usage guidelines based on visual health, and complete standardized research in line with visual health and safety.

As the parallax increases, various indicators such as the user's close eye position and tear film breakup time have changed significantly, which is what the research found. Increasing parallax can improve the immersion of the virtual reality experience, but it will increase the fatigue of the user's eyes. "Yuan Jin said that in addition to the parallax factor, changes in indicators such as the visible image range, refresh rate, and brightness contrast displayed by the VR device display may also bring varying degrees of eye fatigue to users.

Written by: Nandu reporter Wu Yueming Correspondent Tai Mengyun Tang Yanli

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