1) Say, if someone was blinded by something at like the age of three then around the age of 17 bonded with a guyver would there site be restored? Or if some became paralized at the waist, then bonded with the guyver, would there legs be able to move again.

2) Would the guyver cure born disablities like someone born blind or deaf. Down syndrome?

3) If some one lost a limb. Would the guyver regrow it?

I personally think the guyver would do 1 and 3... but probally not 2.

It all depends on how much the unit can alter a host when it bonds with them.Would it repair simple things like scars? or just the major concerns? Would it be able to repair corneal damage? or a lost limb.Or fully heal a parapelegic(sp?)?

For example,would my knee get repaired if I were to actually become Cerebus?Since it's a pre-existing injury I'm not sure. We know from episode 12 of the original series that the guyver heals wounds recieved to the host when the unit was inactive.(sho getting speared by Aptom,we see his side intact without scarring at the end)

Would a blind host become something akin to Daredevil with the unit simply boosting all other senses to compensate for the absence of one?

In short,I have no fucking clue :P