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Procedure for Bionic Eye Surgery

So theirs this guy called Joel who suffers from a case of bad luck. You see Joel was just minding his own business (in a war zone) when a grenade decided to introduce itself to his face (we all have been there). So Joel's face was cut to ribbons; he suffered major damage to the face, neck and lost both eyes. A black site operative was in the area collecting (unwilling) test subjects for some cybernetic experiments and chanced upon him. So he took Joel back with him to turn him into a mindless killer cyborg (still better than the health care).

So the problem is I have no idea how they would install a Bionic Eye. it just seems much harder than say a hand or leg. in fact check out my question about a cybernetic arm I did a while ago same story different character biological cybernetics for human prosthetics just saying I know how the basics work, but haven't figured out how they would do it with the eyes. I would think it would be very different from say connecting a nerve to a cybernetic arm to get movement then relaying an advanced image in real time into your brain. I just want to use realistic surgery for my book and I’m far from a medical student so any info would help a lot

so my question is this: What would be the Procedure for Bionic Eye Surgery?

My idea (once the problem is solved) would be installing a holding socket inside the eye where it was connected to the brain so they could just screw in any Bionic Eye they wanted like a light bulb (but I’m very open to different ideas). And just for the people that haven’t figured this out yet this is in the future with an advanced tech level

2 Answers
2

What would be the Procedure for Bionic Eye Surgery?

I assume you don't want to publish the detailed surgical protocol on some high impact score journal, but rather give some plausible explanation on how the thing might work.

Thus:

You need to remove the original, damaged eyes and let the sockets heal. If the facial bones have been damaged, you need to fix those too.

Then you need to measure the socket interior and 3D-print an eyeball to match. The exact internals of the artificial eye are up to you. The most complicated detaild are, in order of complexity:

Connecting the bionic eye interface to the optic nerve. You will have to connect electronic bits to tips of neurons individually if you wish to get eyesight at least as good as the original capacity the cyborg had.

Training. The cyborg's brain will not understand the signals coming in as soon as the eyes are activated. Neural networks, even natural ones, need training. This may take anywhere from days to months. The eyes may stream 4K video to a computer but the cyborg will only see static, then blotches, then blurry images until his brain gets used to the eye's signals.

Focusing and adjusting for darkness. Our eyes are not just passive cameras on a single configuration. We can move small parts to adjust focus and to allow more or less light to come in. This is done by muscles. The artificial eye will need servomotors for that, or in the very least solid state electronics that will take input from cyborg's nerves and do the equivalent of what a pupil and the lens would do. The cyborg will need neural network training for those too.

Self cleaning. Eyes are cleansed by the immunological system and the flow of acquous humor on the inside, and tears on the outside. Maybe you can reuse the tear ducts for the outside, but inside maintainance is on the bionic eye engineer.

And finally, make the eye out of a material that does not cause rejection. But it's the future, so maybe that is already solved.

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