Pecking orders are never reinforced by pecking into the eyeballs.
That's probably protein seeking behavior, aka cannibalism. It's not uncommon for them to peck out one another's eyes. Even chicks can kill at a tender age, in fact they can kill in their first 24 hours of life; some will begin consuming other chicks that are still in the process of hatching.
We bred this into the birds that exhibit it by rearing generation after generation under unnatural circumstances and breeding even those who exhibited seriously malignant social traits, instead of culling; in all cases of cannibalism I've seen and heard of, it was always high-production breeds that are mass farmed doing it, Barred Rocks being a prime example. The ones I dealt with personally are Isabrown and Leghorn derivatives. Obviously, in the more natural environment and lifestyle, a cannibal would not pass on its genes.
Some people still believe all instincts are inherently correct and immutable, i.e. if an animal does it, it must be correct, but that belief flies in the face of the reality, wherein we've bred maternal instinct out of hens, paternal instinct out of roosters, and filial instinct out of chicks, and bred in a whole host of other troubling behaviors like extreme violence, bullying, cannibalism, featherpicking, etc. Some individuals and some strains of some breeds of chickens are best equated to psychopathic inmates better suited to a life of solitary.
Personally, I'd cull that chick, whether that means you rehome it or kill it.
If it has cannibal tendencies, the totally unnatural tendency to view its own kind as food, then it will in all likelihood pass them on to its own offspring, as in all likelihood it inherited them; these aberrant traits have replaced natural ones. It didn't just wake up one day thinking it would eat another chick's eyes, it was always that way, and always will be; normal chickens can starve to death without resorting to cannibalism. It's something we have developed in them until it's a basic behavior in some, not a rare occurrence. It's acting on a long line of ancestral experience that tells it that the eyes of other chickens are nutritious.
It views the other chicks as food, and it's not wrong, really, they can be food, but nobody wants chicks that kill and eat each other, or just maim each other, who grow up into cannibal chickens who need spectacles and debeaking etc to prevent them acting on their tendencies. You can safely bet that if any of your birds ever gets hurt, this one will begin consuming them, and by the looks of it will start on them even before they're hurt.
I culled out all birds with cannibal tendencies etc and within a few short generations, just by breeding those without negative social traits, I had a totally peaceful flock, where injured birds could associate with the others without being harmed, where no bird was bullied; this made things peaceful and smoothly productive for both myself and my flock. But I do have a zero tolerance policy for all negative social behaviors, from cannibalism to bullying to excessive violence, to roosters mistreating hens, to chickens being aggressive to humans. Many people aren't so intolerant of negative traits, they're more willing to keep animals with such tendencies. Each to their own.
If you want them to be the best they can be, and have the best lives they can, and you want the best experience you can have, I would highly recommend you cull out all harmful traits. Breeding out, and training out, does not work anywhere near as quickly and efficiently as removing and not breeding the harmful ones.
Best wishes.
