Videolaryngostroboscopy (VLS) is a modern method to examine the larynx with the use of stiff and/or flexible endoscope with a stroboscopic light and with a possibility of making film and photographic documentation.
Videolaryngostroboscopy is one of the most significant examinations conducted during diagnostics of voice disorders. It allows for accurate assessment of morphology and function of the vocal folds. The inside of larynx observed in the stroboscopic light creates the illusion of slow movement of vocal cords during phonation. This method is of particular use for people who use their voice professionally (e.g. teachers, lecturers, actors, singers), whose small deficits in morphology or functioning of vocal cord result in voice problems and as a consequence they cannot work with voice. Videolaryngostroboscopy also helps in detecting early neoplastic lesions of the larynx, scarring within the vocal folds or in a differential diagnosis ofvocal cord cysts and nodules.
Videolaryngostroboscopic assessment of the larynx helps to better plan the treatment and to estimate the prognosis in the case of voice problems.