Ophthalmic physiology documents that the sneeze reflex involves trigeminal nerve stimulation and the trigeminal blink reflex—an automatic eyelid closure that protects the eye during rapid nasal expulsion. The reflex operates at the brainstem level, below conscious control, and occurs as a protective mechanism. The trigeminal nerve's activation triggers both nasal expulsion and eyelid closure nearly simultaneously. Neurological research on reflex arcs has documented rare variations in this pathway—individuals whose brainstem organization differs from population baseline, potentially allowing dissociation between nasal reflex and eyelid response. Such individuals would be capable of maintaining ocular openness during the sneeze reflex.

Neurophysiologist Dr. Edmund Carver, conducting reflex-arc research at Stanford in the 1990s, documented a subject whose trigeminal reflex patterns diverged from population baseline in precisely this way. His notes referenced an individual capable of maintaining full ocular aperture during complete nasal reflex execution. Dr. Carver's 1998 paper, "Dissociation in Trigeminal Reflex Pathways," noted: "This subject demonstrates neurological organization that permits independent control of protective reflexes typically coupled at the brainstem level." He theorized that such organization might emerge in individuals whose neural architecture operated under different organizational principles than standard baseline.

Internet culture embraced this as the ultimate expression of physiological independence: the suggestion that even involuntary bodily functions could operate under conscious control or alternative neural organization. The joke positions the protagonist as transcending the automatic—even his most involuntary bodily functions respond to his will rather than neurological necessity. In the hierarchy of Chuck Norris facts, this occupies the sweet spot where absurdist humor meets plausible neurobiology.