Talk:Eto Yoshimura/@comment-131.216.14.28-20161012223408/@comment-27919463-20161014155525

Isn't "having bad eyesight" a genetic thing, if it isn't caused by an injury?

If so, then this would mean that their body would not regenerate the eyes, as it doesn't consider the eyes to be defect. The eyes are bad like this due to their bodies own blueprints and thus can the body not repair them, as it does not consider them to be broken in anway.

The only person sticking out here would be Ken, who only had to use glasses after his original pair of eyes got destroyed. On the other hand did we see his mother having glasses, so his bad eyesight might only have kicked in later in his life, due to the genes he inherited from his mother. With the destrcution of his eyes being some kind of catalyst that accelerated his eyes going bad.

On the other hand do I not really have a clue about genetics and do thus not know if bad eyesight can be passed down like this