This product, the "Science Eye" is only intended to cure very specific cases of blindness. The photoreceptors must be ruined but the ganglial cell, the optic nerve and the entire optical tract to the cortex must be intact.

This is basically just a small display inserted into the eye. It won't read any data from the brain, it won't influence hearing, thoughts, movement, smell, etc. This can't enable Ready Player One. It's a cure for some forms of blindness.

Neuralink, if it worked as intended, might enable full dive VR like in Ready Player One. That's not to say it will work as intended. Just that these are very different products.