A St. Lucy medal is a special gift for confirmation and as St. Lucy is the patroness of the blind the St. Lucy pendant is appropriate to wear if you are praying for someone with an eye affliction. St. Lucy was executed for her Christian beliefs and is venerated for her great love of God. Her feast day is December 13th.
Saint Lucy, also known as Saint Lucia, was a young Christian who was martyred during the Diocletian Persecution. She consecrated her virginity to God and intended to help the poor by giving them her dowry.