Nice for those hospitals who can afford high tech entertainment devices and the attendant communication systems required. Could be iffy though if there is a bad connection.
There is a better way to 'distract' the patient. Hypnosis. It's free aside from the need for a skilled operator. No equipment or communication devices required. The operator doesn't even have to be present in the arena.
Not only can hypnosis distract the patient, it can allow the patient to participate in the procedure. Being fully aware, the patient can move muscles, control blood flow and report to the surgeon various sensations.
Countless births and surgical operations have been enhanced with hypnosis. I personally had three teeth pulled with only a mild hypnotic sedation. There was no pain, no bleeding at the time or after although I was fully aware of the crunching of bone during the extraction and the vigorous muscle applied to get those molars out. I spit chunks of bone for several days after.
Hypnosis is associated with magic in the uneducated mind. It's a shame. There is no more natural way to be in tune and in control of our bodies and minds.