A top surgeon is carrying out the world's first live-streamed virtual reality (VR) operation on a human patient with colon cancer on Thursday.
The operation is taking place at 1 p.m. GMT (8 a.m. EST) in a London hospital.
People wanting to watch it can download the "VRinOR" app from Apple's App store or the Google Play store and watch the operation via a VR viewer such as Samsung's Gear VR or Google Cardboard.
Virtual reality allows people to put on a special headset and be immersed in an experience. They will be able to look around the operating theatre in 360 degrees and see what is going on.
The surgeon behind the project, Shafi Ahmed, who works the U.K.'s National Health Service, said the idea is to boost medical education around the world.
"Smartphones are easily accessible to most people, connectivity is improving and everything is in place to make that connection more viable and use it in a way to make that better for education," Ahmed told CNBC in a phone interview on Thursday ahead of the surgery.
"Virtual reality is a simple headset with a simple app, and this will then suddenly let the world be taught and trained together. That will provide care across the globe."