A 66-year-old man developed a severe corneal infection from a stone chip injury that didn’t improve with standard antibiotics. Doctors discovered the infection was caused by a rare plant fungus called Stemphylium lycopersici, combined with a herpes virus. Using advanced genetic testing (mNGS) to identify the exact pathogens, they prescribed targeted antifungal and antiviral medications along with a corneal transplant, successfully healing the infection and preserving his vision.