Third Eye Retroscope Randomized Clinical Evaluation (The "TERRACE" Study)

Inclusion Criteria:

- The patient is undergoing colonoscopy for screening, for surveillance in follow-up of
previous polypectomy or for diagnostic workup;

- The patient must understand and provide written consent for the procedure.

Exclusion Criteria:

- Patients with a history of colonic resection;

- Patients with inflammatory bowel disease;

- Patients with a personal history of polyposis syndrome;

- Patients with suspected chronic stricture potentially precluding complete
colonoscopy;

- Patients with diverticulitis or toxic megacolon;

- Patients with a history of radiation therapy to abdomen or pelvis;

- Patients who are currently enrolled in another clinical investigation in which the
intervention might compromise the safety of the patient's participation in this
study.