Having a camera inside your eye is sounds great and interesting but scary. Privacy and security maybe a big issue because it make him/her a living science experiment.
This technology have been done before using with wires linking between retina and external camera which is a major disadvantage.
Scientist had made a lot of effort looking for solutions to help blind people just to regain their eye-sights.
Michelle Hauer a UCLA Optical Engineer deemed that inserting a tiny camera inside the lens of the eye will be capable of adapting for corneal optical effects and possibly using haptics just to stabilize its position.
It will be a major achievement if the scientist are able to make a technology like this in a near future.