Mt 11:2-5, Lk 7:22, Lk 4:16-21

In the Old Testament, Isaiah prophesied that the coming Christ would come to this earth so that the deaf would hear and see the blind. (Isa 29:18-19)

Isa 29:18 And in that day shall the deaf hear the words of the book, and the eyes of the blind shall see out of obscurity, and out of darkness. 19 The meek also shall increase their joy in the Lord, and the poor among men shall rejoice in the Holy One of Israel.

When John the Baptist's disciples asked Jesus if he was the Christ, Jesus showed that the prophecies about Christ in the Old Testament had been fulfilled in Himself. (Matthew 11:2-5, Luke 7:22)

Matthew 11:2 Now when John had heard in the prison the works of Christ, he sent two of his disciples, 3 And said unto him, Art thou he that should come, or do we look for another? 4 Jesus answered and said unto them, Go and shew John again those things which ye do hear and see: 5 The blind receive their sight, and the lame walk, the lepers are cleansed, and the deaf hear, the dead are raised up, and the poor have the gospel preached to them.

Luke 7:22 Then Jesus answering said unto them, Go your way, and tell John what things ye have seen and heard; how that the blind see, the lame walk, the lepers are cleansed, the deaf hear, the dead are raised, to the poor the gospel is preached.

Jesus also went to the synagogue and showed the Jews that what was written about Christ in Isaiah had been fulfilled in Himself. (Luke 4:16-21)

Luke 4:16 And he came to Nazareth, where he had been brought up: and, as his custom was, he went into the synagogue on the sabbath day, and stood up for to read. 17 And there was delivered unto him the book of the prophet Esaias. And when he had opened the book, he found the place where it was written, 18 The Spirit of the Lord is upon me, because he hath anointed me to preach the gospel to the poor; he hath sent me to heal the brokenhearted, to preach deliverance to the captives, and recovering of sight to the blind, to set at liberty them that are bruised, 19 To preach the acceptable year of the Lord. 20 And he closed the book, and he gave it again to the minister, and sat down. And the eyes of all them that were in the synagogue were fastened on him. 21 And he began to say unto them, This day is this scripture fulfilled in your ears.