Magnificent Obsession (1954 movie)
Spoiled playboy Robert Merrick loses control of his speed boat.  Rescuers send for a resuscitator in Dr. Phillips's house on the other side of the lake.  While the resuscitator is being used to save Merrick's life, Dr. Phillips has a heart attack and dies.  Merrick ends up at Dr. Phillips's clinic. The doctors and nurses blame him for Dr. Phillips's death.  He tries to run away but collapses in front of Helen Phillip's car. Helen is Dr. Phillips's widow. She does not know Merrick. Merrick ends up back at the clinic.  After his discharge, he resumes his playboy life. He makes advances to Helen. She runs away, and steps into the path of an oncoming car. She is blinded by the accident. Merrick commits to becoming a doctor.  He has fallen in love with Helen. He helps her adjust to her blindness by posing as a poor medical student, "Robby".