Yes, it is essential. The light rod suture system kit consists of a device that makes precise punctures in the skin, followed by what is called the dermal clearing device that is inserted into each puncture to clear the dermal attachments around each point of entry.Â  The light handle and the suture rod are used to construct the suture matrix underneath the skin using the LED light guidance. The suture rod is illuminated at its tip, so that light transilluminates through the skin.