Final answer:
The blind hunter whose sight was prophesied to be restored upon turning his eye sockets towards Helios is Phineus.
Step-by-step explanation:
The prophecy regarding the restoration of a blind hunter's sight if he turned his eye sockets towards Helios relates to Phineus, not Tiresias, Orion, or Actaeon. Phineus was a king in Greek mythology who was blinded and tormented by the Harpies as punishment for revealing too much of the gods' plans. Eventually, the Boreads, sons of Boreas, provided him relief. The prophecy was that his sight would be restored by looking towards the sun god, Helios.