Need Help Please

Hello to all,

Back in the day around the 80s martial arts use to come on tv on Saturdays. I saw a film that I am looking for but do not know the title or the cast. It was a young man who killed a bad guy. I know this is not enough so bare with me.

To masters, 1 good and 1 evil. They fight and evil prevails. The young pupil vowels revenge and trains for years. He comes back to avenge his masters death. He fights a old gut with white hair and a white long beard. His finishing move is actually the evil masters move, which was done on the pupils master.He jumps onto the masters shoulders and plucks his eyes out.

They where near some stairs at a massive temple. When he took his eyes out the Evil Master fell down the stairs and it ends. Does this ring a bell to anyone?

Thank you all