Daredevil

Daredevil was blinded at a young age by radioactive chemicals that fell from a oncoming vehicle.

Matt Murdock's father was a boxer. When Matt was blinded during an accident in his childhood by an oncoming vehicle full of radioactive chemicals, being smuggled through the city under the crime lord Kingpin's orders, his father vowed revenge. Matt's father attempted to turn the criminal mastermind in to the police, though was discovered gathering evidence by the Kingpin, and was subsequently killed. Following this, Matt vowed to avenge his father's death. Even though he was blind, Matt's other senses seemed to be enhanced as of the accident, and upon meeting a mysterious man named "Stick", was mentored to control these senses, and took on a crimefighting secret identity, the Daredevil. As Matt continued to seek revenge on the Kingpin, he teamed with Spider-Man to clear Peter Parker's name, who had been framed by the Kingpin's son, Richard Fisk, of selling government secrets. When Daredevil and Spider-Man eventually managed to clear Parker, Kingpin allowed his son to go to jail, and Daredevil and Spider-Man went their seperate ways though both continued to attempt to bring down Matt's greatest nemesis.