He was able to see various objects on a table, along with the ability to discern different shades of gray. He was also able to see well enough to move around without outside help.
He stated, within the BBC News article Implanted chip 'allows blind people to detect objects, "Three or four days after the implantation, when everything was healed, I was like wow, there's activity"
Terho added, "Right after that, if my eye hit the light, then I was able to see flashes, some activity which I hadn't had."
And, "Then day after day when we started working with it, practising, then I started seeing better and better all the time."
The researchers concluded, 'These results demonstrate for the first time that subretinal micro-electrode arrays with 1500 photodiodes can create detailed meaningful visual perception in previously blind individuals.' [Abstract]
After their success with these patients, the team headed by Dr. Terho is now working on an improved version of their e-chip.