Virtual Reality Safety: Myths and valid Health Concerns

As virtual reality (VR) grows in popularity across industries like gaming, education, and even healthcare, concerns about its safety are becoming increasingly common. While immersive technology offers incredible benefits, it's essential to understand the facts about its health implications. This article will debunk myths surrounding VR and offer science-backed insights into its real health concerns, ensuring you use it safely and responsibly.

The Myths vs. Reality of Virtual Reality Safety

Myth 1: VR Causes Permanent Eye Damage

One of the most prevalent concerns is that extended use of VR headsets may damage vision permanently. The fear often stems from the close proximity of the screen to the eyes, which some believe could cause long-term harm.

The reality? According to the American Academy of Ophthalmology (AAO), prolonged screen use—including VR—may cause digital eye strain, leading to discomfort, dryness, or blurry vision, but there's no evidence that it results in permanent damage. The AAO recommends taking breaks to alleviate symptoms: follow the 20-20-20 rule, where every 20 minutes of screen time, you take 20 seconds to look at something 20 feet away​​.

In a  CNN interview Berkeley optometry Professor Martin Banks, who studies visual perception in virtual environments stated:“There are a variety of potential issues,” said University of California,  “One is how we affect the growth of the eye, which can lead to myopia or nearsightedness.”

Myopia is a growing problem around the world. In the United States, studies show, nearsightedness rose from only 25% of the population in the 1970s to over 40% by 2000. About 10 million American adults are considered “severely nearsighted.”

“Looking at tablets, phones and the like, there’s pretty good evidence that doing near work can cause lengthening of the eye and increase risk for myopia,” Banks said. “We’re all worried that virtual reality might make things worse.”

Despite what you might hear, the idea that screens are ruining your vision is largely a myth. However, using VR headsets can lead to issues like dry eye and digital eye strain so taking breaks is very important.

Myth 2: VR Is Dangerous for Mental Health

Some worry that immersive VR environments could have adverse effects on mental health, such as anxiety, addiction, or dissociation. While there are concerns about overuse, particularly in gaming, VR also shows great potential as a therapeutic tool.

The reality? Research has found that VR can reduce anxiety and stress. A study by Massachusetts General Hospital (MGH) showed that VR-based meditation reduced anxiety levels , providing calming, immersive experiences that promote well-being​​. VR is now widely used in controlled healthcare environments for treating pain, PTSD, anxiety, phobias and more.

The type of content in virtual reality significantly impacts mental health. While positive VR experiences can promote behaviors like self-care or increasing empathy, violent or frightening content can trigger anxiety, increased heart rate, or even PTSD. As VR feels like a real-life experience, it's crucial to approach its use ethically and mindfully, especially when dealing with emotionally charged or harmful content.

Myth 3: VR Causes Permanent Vertigo and Nausea

Many VR users report experiencing motion sickness or vertigo, leading to concerns that frequent use may cause lasting balance disorders. This effect, known as VR-induced motion sickness, occurs when the brain receives conflicting signals from the eyes and the inner ear about movement.

The reality? While motion sickness is common, especially among new users, its effects are temporary. According to studies published in Frontiers in Virtual Reality, most users experience adaptation over time, and symptoms decrease with shorter initial sessions​. Starting with simple experiences and gradually increasing exposure can help reduce the likelihood of vertigo and nausea.

Real Health Concerns with VR Usage

1. Eye Strain and Fatigue

Using VR headsets for extended periods can cause eye strain, also known as computer vision syndrome. This is because the eyes are constantly focusing and refocusing on objects in the virtual world.

To minimize strain:

• Use the 20-20-20 rule.
• Adjust the brightness and position of the headset for comfort.
• Ensure your headset fits properly to avoid unnecessary pressure on your eyes.

2. VR and Motion Sickness

Motion sickness in VR is caused by the disconnect between the movement your eyes perceive and the stillness of your body. Studies suggest that up to 40% of users experience some form of VR motion sickness, especially in high-motion experiences​.

To reduce these symptoms:

• Start with shorter sessions.
• Choose VR experiences with slower movements.
• Use fans or well-ventilated spaces to keep cool, as heat can exacerbate nausea.

3. Impact on Balance and Spatial Awareness

While VR immerses users in virtual worlds, it can disrupt their sense of balance in the real world. Losing awareness of your surroundings can increase the risk of tripping or bumping into objects.

To stay safe:

• Use VR in a spacious area free of obstacles.
• Enable boundary alerts (sometimes called a "chaperone" or "guardian" system) to help you remain aware of your physical space.

4. Seizures and Epilepsy

There’s a risk of photosensitive seizures for individuals with epilepsy when using VR due to the flashing lights and patterns in some virtual environments. According to the Epilepsy Foundation, about 3% of people with epilepsy experience seizures triggered by visual stimuli like video games or VR​.

Most VR devices come with warnings for users with a history of seizures. It’s always advisable to consult a healthcare provider before using VR if you have epilepsy or are prone to seizures.

Best Practices for Safe VR Use

While the concerns around VR safety are real, they can be managed effectively with proper use. Here are some best practices to ensure a safe and enjoyable VR experience:

1. Limit Sessions: Limit VR use to 30-45 minutes at a time to avoid fatigue and discomfort. Prolonged use can exacerbate symptoms like eye strain and motion sickness.
2. Use Proper Equipment: Ensure that you are using a well-designed headset that fits comfortably and is adjusted properly for your vision.
3. Take Regular Breaks: Taking breaks every 20 minutes can reduce the risk of discomfort. Stretch, rest your eyes, and move around to maintain your physical and mental balance.
4. Monitor Children’s Use: Children’s visual systems are still developing, and they may be more susceptible to issues like eye strain or motion sickness. Set time limits and supervise their VR usage.
5. Listen to Your Body: If you feel any discomfort—whether it’s eye strain, dizziness, or nausea—stop and rest. VR should be fun and immersive, not a source of physical distress.

Final Thoughts: Is VR Safe for Everyone?

While VR is generally safe for most users, individual experiences may vary depending on how sensitive someone is to issues like motion sickness, eye strain, or photosensitivity. The key to using VR safely lies in moderation and being mindful of your body’s responses.

By following best practices and understanding the myths and facts surrounding VR’s impact on health, users can enjoy the benefits of virtual worlds without putting their well-being at risk. If you have any underlying health concerns, it's always a good idea to consult a healthcare professional before using VR.

‍