Cristina was deeply affected by the crash too.
Instead of destroying her, as it would have most people, she used the event to orient her life goal to becoming a Cardiothoracic surgeon so she could save people like her father in the future.
They didn't go over her dyslexia much in the series, but it is just another backstory detail that makes her character all the more compelling.
Jonathan is a graphic artist, illustrator, writer, and game designer.