A videostroboscopy is a specialized diagnostic procedure that your doctor may choose to use in order to be able to identify any subtle changes in your vocal cords (voice box). Videostroboscopy is also used when your physician would like to differentiate your vocal fold nodules from any vocal fold polyps or cysts that you may have. Videostroboscopy depends upon the use of both a camera and a video recording system. A video strobe, a stroboscopic light, will be used along with a laryngoscope. Together these instruments are used in order to visually slow down the motion of your vocal folds. Once this motion has been slowed down, the motion will then be recorded and more carefully examined.