how did arya stark get her sight back
Arya Stark After skinchanging into a stray tomcat that followed her back to the temple, Arya is able to identify the Kindly Man as the person who sneak-attacks her with a stick every night and later surprise-hits him. For this achievement she passes the test and regains her vision,[27] and is given her first assassination assignment. When she successfully poisons a crooked insurance salesman without rousing any suspicion or collateral damage, the Kindly Man gives Arya an acolyte's robe and assigns her to begin her first apprenticeship inserted within a theatrical group.[28]