Virtual and augmented reality in medicine and rehabilitation

What VR and AR are

Virtual reality uses a headset to place you inside a fully computer-generated world; when you turn your head, the scene moves with you, creating a strong sense of really being somewhere else. Augmented reality is different: instead of replacing the real world, it adds digital images or information on top of what you can already see, through a headset, glasses or even a tablet screen. A related idea, mixed reality, blends the two so digital objects appear to sit within and interact with your real surroundings. In healthcare, VR is often used to immerse and distract or to simulate practice, while AR is more often used to guide a task in the real world — for example, showing a surgeon useful information during an operation.

Training and surgical planning

One of the strongest uses of VR and AR is in education and surgery. Trainee surgeons and other clinicians can practise procedures in realistic virtual simulations as many times as they need, without any risk to patients, and receive feedback on their technique. This lets people build skills and confidence before they ever work on a real person. For surgical planning, three-dimensional models built from a patient's own scans can be explored in VR, helping the team rehearse a complex operation in advance. During surgery, AR can overlay a patient's anatomy or scan images onto the operating field, helping surgeons see structures that are hidden from view. These tools aim to make procedures safer, more precise and easier to teach.

Pain, anxiety and distraction

VR is a powerful distraction, and this turns out to be genuinely useful in medicine. When someone is fully absorbed in an immersive virtual world, the brain has less attention to spare for pain and worry. VR has been used to reduce pain and distress during procedures such as wound dressing changes, blood tests and dental work, and to calm anxiety before operations, particularly in children. It is also being explored for managing longer-term pain and for mental health, where calming virtual environments and guided exercises can support relaxation and exposure-based therapies for phobias and anxiety. Because it is drug-free, VR distraction is an attractive addition to, not a replacement for, standard pain and anxiety management.

Rehabilitation and recovery

Rehabilitation is one of the most promising areas. After a stroke or serious injury, people often need to repeat movements many times to help the brain and body relearn skills, but this can be repetitive and demotivating. VR and AR turn these exercises into engaging games that reward effort and progress, which can help people practise more and stay motivated. Systems can track movement precisely, adjust difficulty automatically and give instant feedback, and some allow therapy to continue at home with remote monitoring. This is being used to help recover arm and hand movement, retrain balance and walking, and support recovery in conditions affecting the brain and nervous system. Early evidence is encouraging, especially when VR is added to conventional therapy rather than replacing it.

Benefits, limits and the future

The appeal of VR and AR is clear: safe skills practice, drug-free ways to ease pain and anxiety, and more engaging rehabilitation. But the technology has limits. Headsets can cause motion sickness, eye strain or dizziness in some people, and are not suitable for everyone. The quality of the underlying programmes varies, and not every product on the market is backed by strong clinical evidence; medical devices need proper evaluation and regulation for safety and effectiveness. Cost, staff training and fitting the technology into busy services are practical hurdles. The direction of travel, however, is towards lighter headsets, better evidence and wider use, with health technology bodies assessing which tools genuinely help patients before they are adopted widely across the NHS.