The NEW English PrismView™ and American PrismView™ blade may be used: • when the view of the vocal cords is impaired, especially the most anterior larynx • during nasal intubation • for post operative examination of the larynx All blades have an extra bright reflector lamp and contain an optically polished prism which provides a refraction of 30° without image inversion. To prevent condensation, warm the prism before use by immersing the complete unit in warm water. Blade is made of surgical stainless steel.