The purpose of this study is to compare the adenoma detection rate of G-EYE™ high definition colonoscopy with that of standard high definition colonoscopy.

Single Center, two-arm, randomized , open-label study with different and blinded endoscopists.

Inclusion Criteria:

1. Patients over 50 years old
2. Referred to colonoscopy for screening, following positive FOBT testing, change of bowel habits or for surveillance colonoscopy (history of adenoma resection).
3. The patient must understand and provide written consent for the procedure.

Exclusion Criteria:

1. Subjects with inflammatory bowel disease;
2. Subjects with a personal history of polyposis syndrome;
3. Subjects with suspected chronic stricture potentially precluding complete colonoscopy;
4. Subjects with diverticulitis or toxic megacolon;
5. Subjects with a history of radiation therapy to abdomen or pelvis;
6. Pregnant or lactating female subjects;
7. Subjects who are currently enrolled in another clinical investigation.
8. Subjects with current oral or parenteral use of anticoagulants
9. Subjects with recent (within the last 3 mounts) coronary ischemia or CVA (stroke)