Colonoscopy is generally considered the gold standard for detection of polyps and cancers in the colon, but some lesions are missed. The Third Eye® Retroscope® (Avantis Medical Systems, Inc., Sunnyvale, CA), was designed to provide an additional, retrograde view to complement the forward view of a standard colonoscope. This study is designed to evaluate the effectiveness of the device for increasing the diagnostic yield of colonoscopy.
Siersema, P., Leufkens, A., Repici, A., Deprez, P., Vleggaar, F., Rando, G., Azzouzi, K., Dewit, O., East, J., Ignjatovic, A., & Saunders, B. (2009). Third Eye Retroscope Randomized Clinical Evaluation (The “TERRACE” Study): Interim Results. The American journal of gastroenterology, 104, S527-S528. https://doi.org/10.1038/ajg.2009.492_21 (Original work published 2009)