Apple got a patent for eye tracking. When can I use the iPhone?

Apple exposed the latest patent and applied for "display event delay based on user's eyes". Detailed information shows that this patent was submitted by Apple in September 20 12, and can be managed and realized by eye tracking technology. For example, when the system recognizes the wrong text, it will look at the current state through the user's eyes. When you look at the wrong text now, the system will provide the correct content; If you don't read the wrong text, it will delay correction. The same is true for the notification part, which will prevent users from missing a lot of important content. But at present, Apple has not really used this patent. I hope I can help you.