Neuralink Blindsight: Giving Vision Back to the Blind

[gentle music] Welcome to Neura Pod, a channel about all things Neuralink.

My name is Ryan Tanaka.

Right now in Q2 2026, more than 20 people are living with the N1 implant and using it at home for over 50 hours a week on average, controlling their computers, playing games, designing in CAD, and even feeding themselves with nothing but their thoughts, which by the way, Elon recently reiterated, agreeing that Neuralink will help millions restore speech, blindness, and so much more, and enable quadriplegics to walk again and use their hands.

Blindsight is the next major leap, a brain stimulation system with many points of contact placed directly in the visual cortex that can restore limited but functional vision to people who have been blind for decades.

In the latest update, they laid out the exact engineering path.

There are four main components that make this work.

First, a camera that's embedded into the pair of glasses that the user would wear, an S2 chip that is built specifically to work with stimulating neurons in the brain via tiny electrical current, custom electrode threads that get inserted directly into the brain tissue, and real-time calibration on the computer.

Living without sight is far more than missing pictures or colors.

It means relearning every task through sound and touch while everyone else has an advantage.

Crossing a street, cooking a meal, watching a child take their first steps all become a function of other senses, or if you could once see before, then also a function of memory.

There are some assistive devices, but none compared to actually getting vision back, and the number of people affected by blindness are larger than you may think.

Roughly 43 million people around the world are completely blind today, with projections climbing towards 60 million by 2050.

The leading causes are cataracts, glaucoma, age-related macular degeneration, diabetic retinopathy, and corneal damage.

Each of these are overwhelmingly problems in the eyes or optic nerve, not the brain itself.

That means the visual cortex remains fully intact in the vast majority of cases.

So I'm not looking for ultimate precision here, but just to give a sense of how impactful this is, over 90% of people who have lost their sight could potentially benefit from Blindsight.

This is exactly why Neuralink's approach works so well.

The brain does what it's always done.

After the glasses and implant turn the video from the camera into brain signals, the brain processes the signals to perceive light, contrast, motion, and eventually recognizable shapes and objects.

Elon has mentioned this will not give you 4K resolution off the bat, but it's a huge deal to just recognize the faces around you and not bump into walls or trip over objects.

Neuralink's ultra thin threads can reach deep into the folds in your brain tissue where the complete visual field is mapped.

This gives access to a field of view that is much more useful than other devices could achieve.

Their brand new S2 chip was designed from the ground up for stimulation, with more than 1,600 channels with the exact currents and voltages needed to create safe, clear phosphenes.

I'll share more about these in a bit, but this is why you may have heard me talk about this before.

The team doesn't only aspire to help many people, but they importantly have the courage to tackle these hard engineering problems that most other companies are too scared to take on.