The human voice is amazing. Every time we talk, sing, or whisper, our vocal folds—tiny bands of muscle and tissue in the larynx—vibrate very quickly to create sound. These vibrations are essential for speech, but the vocal folds are delicate. Injuries, diseases, or aging can change how these tissues work, causing hoarseness, weak voice, or even loss of voice. To help people with voice problems, doctors and scientists need ways to see how vocal folds move and understand their mechanical properties. Traditional methods, like laryngeal stroboscopy and high-speed videos , let doctors watch the surface of the vocal folds. While useful, these methods cannot see below the surface. The deeper layers of tissue are very important for normal voice function, and changes in these layers often cause voice disorders. This is where cross-sectional imaging can help, showing not just the surface but also the layers underneath. What is Optical Coherence Tomography (OCT)? Optical Coherence Tomography (O...