Approximately 75% of newly diagnosed bladder cancers are not muscle invasive at presentation 1. Non-muscleinvasive bladder cancer (NMIBC) has a high recurrence rate (50-70% of patients), and 10-20% of NMIBCs (especially high-risk disease) will progress to muscle-invasive disease (depending on stage and grade at diagnosis) 1. Initial management of NMIBC includes transurethral resection of bladder tumour (TURBT). Use of intravesical BCG or intravesical chemotherapy in intermediaterisk and high-risk disease decreases the risk of recurrence and progression 2,3. Surveillance protocols for patients with NMIBC involve frequent cystoscopic evaluation primarily in the outpatient setting 2,4. White light cystoscopy (WLC) has long been the standard-of-care modality for surveillance with a high sensitivity for detection of papillary tumours 2,4. A known limitation of WLC is in detecting carcinoma in situ (CIS), which can result in a false-negative rate as high as 20% 5,6. Thus, some patients with recurrence are missed and might progress to worse disease as their disease was unrecognized. The inadequacy of WLC to visualize tumours has led to the development of enhanced cystoscopic techniques. The goal of these techniques is to reduce early recurrences, as many are tumours that were missed or inadequately initially resected owing to suboptimal visualization 7. WLC remains the standard-of-care technique for the detection of bladder cancer, but extensive data have shown that enhanced cystoscopy with blue light frequently detects tumours that are missed by white light 8. The American Urological Association (AUA)-Society of Urologic Oncology (SUO) guidelines for managing NMIBC state that "in a patient with NMIBC, a clinician should offer blue light cystoscopy at the time of TURBT, if available, to increase detection and decrease recurrence. (Moderate Recommendation; Evidence Strength: Grade B)" 2. The European Association of Urology (EAU) guidelines also state that fluorescence-guided biopsy and resection are more sensitive than conventional procedures for the detection of malignant tumours, particularly for CIS (evidence level: 1a) 4 .