A laryngoscope is a medical instrument used to examine the larynx, or voice box, and the vocal cords. It consists of a handle with a light and a blade that is inserted into the mouth to view these structures. This tool is commonly used by otolaryngologists (ear, nose, and throat doctors) to diagnose and treat various throat and voice disorders, such as vocal cord paralysis, laryngeal cancer, and vocal cord nodules. Research in this area focuses on improving laryngoscope design, technique, and technology to enhance visualization and accuracy in diagnosis and treatment of laryngeal conditions. Additionally, studies may explore new applications of laryngoscopy in fields such as speech therapy and vocal performance.