Recurrent unilateral pupillary dilation and transient visual blurring: A clinical challenge during hypoxia exposure in a male fighter pilot

ABSTRACT

Hypoxia is an operational concern in military aviation, and fighter pilots should undertake altitude hypoxia training. Anisocoria is a significant clinical dilemma and may remain a diagnostic challenge for specialists. We present a case of atraumatic unilateral mydriasis during hypobaric chamber training. Our diagnostic dilemma is novel and unique because the authors reported no similar presentation yet, it occurred in a fighter pilot whose occupational future depends on having normal vision, and second, the presence of hypoxia seems to trigger symptoms.