Honoré Barthélémy (25 September 1891 – 12 May 1964) was a French road bicycle racer who took part and finished fifth overall and won four stages in the 1919 Tour de France.
In 1920, says the Yellow Jersey Guide to the Tour de France, he crashed on the stage to Aix-en-Provence and only slowly got back on his bike, dazed and bloody.
As his dizziness lessened, he realised that what he thought was concussion was blindness.
Despite that, he finished not only that day but the Tour, coming eighth despite half-blindness, a broken shoulder and a dislocated wrist.
He last rode the Tour de France in 1927, abandoning on stage 9.