Apple has created technology to control the characters of games look
This will be especially useful for games that have multiplayer mode. This is not about network modes, but offline: when users are sitting at the same computer and using different sets of keys. Apple technology will allow them to get rid of controllers and control characters with their eyes.
The eye tracking system can be used not only in games, but also, for example, when watching TV. Again, with a glance, the user will be able to change the settings when viewing: switch the channel or turn down the volume.
Since this is only a patent, it is not yet clear whether Apple will use the technology to create real products.