Imagine applying this to people who have normal sight.
You could have your own Terminator-style in-eye data display. You could switch between normal, infra-red, and low-light modes.
You could watch movies with your eyes closed.
You could plug into the eyes of someone else out there, see things as they see them. You could operate a remote robot.
Blind people, being early adopters of this technology, will be able to quickly surpass “normal” human vision. Once there’s a computer mediating your visual input, you just need software to get all the cool features.
These are the seeds of future sci-fi technology right now.