Video Stroboscopy Specialist

Parkway ENT and Allergy, PA

Ear, Nose & Throat Specialists located in Katy, TX

When you have a problem with your voice, videostroboscopy is the state-of-the-art, diagnostic procedure for evaluating your vocal cords and diagnosing the problem. At Parkway ENT and Allergy, PA, David Sycamore, MD, performs videostroboscopy using only a topical anesthesia while you sit in a comfortable chair in the office. To learn if you’re a good candidate for videostroboscopy, call the office in Katy, Texas, or schedule an appointment online.

Video Stroboscopy Q & A

What is videostroboscopy?

Videostroboscopy is an advanced imaging procedure that allows Dr. Sycamore to examine your vocal cords. Normally, it’s impossible to see your vocal cords because they vibrate so rapidly.

Stroboscopy is a technique that uses a bright flashing light, or strobe light, to make it appear as if the vibrations in your vocal cords are moving in slow motion. A video is obtained during the stroboscopy, creating detailed images of your vocal cords. 

With this procedure, Dr. Sycamore can see the details of the vocal cord tissues, check for normal vibration and irregular movement, examine how the folds close, and look for structural abnormalities.

Since videostroboscopy is the only way to examine your vocal cords, it’s an essential tool for diagnosing voice disorders, detecting vocal cord lesions, and evaluating swallowing problems.

What should I know about voice disorders?

A voice disorder occurs when your vocal cords are irritated, inflamed, and swollen due to conditions such as:

  • Prolonged talking or singing
  • Talking or singing too loudly
  • Laryngitis
  • Vocal nodules
  • Vocal cord spasms
  • Vocal cord paralysis
  • Thyroid disorders
  • Gastroesophageal reflux disease
  • Laryngopharyngeal reflux


When your vocal cords are inflamed or strained, the quality of your voice changes, causing hoarseness.

How is my videostroboscopy performed?

After applying a topical anesthetic, Dr. Sycamore uses one of two possible techniques. He may use a rigid endoscope and place it through your mouth to the back of your tongue, or he may use a flexible scope inserted through your nose and down to your vocal cords. 

The scope contains a tiny stroboscopic light, microphone, and video recorder. The vibrations produced by your vocal cords are picked up by the microphone, which sends a signal to the computer. Then the computer flashes the strobe light at a slightly slower speed than the vibrations, producing slow motion images.

During your videostroboscopy, Dr. Sycamore asks you to perform a few vocal tasks so he can get images of vocal cord movement. The entire procedure may take 20-30 minutes, but the scope is only in your mouth or nose for a few minutes.

If you develop hoarseness or other changes in the quality of your voice, call Parkway ENT and Allergy or schedule an appointment online.