“Don't it always seem to go that you don't know what you got 'til it's gone,” Joni Mitchell once famously crooned. Six-time MotoGP World Champion Marc Marquez knows that lesson all too well. Like any athlete, vision is key for a motorcycle racer. Judging braking distances, corner radii, and overtakes all require clear eyesight—something Marquez lost three times throughout his acclaimed career.
Marquez’s first experience with diplopia (double vision) occurred following a crash during the 2011 Moto2 season. As an 18-year-old rider (at the time), Marquez overcame the condition and seized the Moto2 World Championship the very next season. Nearly 10 years passed before Marquez battled the condition again, with a motocross training crash leading to a diplopia diagnosis in November, 2021. The condition returned yet again after a vicious high-side crash at the 2022 Indonesian Grand Prix.
