Table 1.

Comparison of studies included in this systematic review.

Title	A novel interactive educational system in the operating room–the IE system	Augmented reality assisted surgery: a urologic training tool	The effectiveness of Google GLASS as a vital signs monitor in surgery: a simulation study
Author	Nakayama et al.[8]	Dickey et al.[9]	Iqbal et al.[7]
Number of participants	20 (all medical students)	30 (10 faculty, 20 trainees)	37 (24 medical students, 8 urological trainees, 5 consultants)
Device	Interactive educational system – Sony OHMD	Google Glass OHMD	Google Glass OHMD
Benefits of using technology	1. Allows communication between surgeon and student.2. Improved visualisation of operative field.3. Most thought it would improve anatomical knowledge.4. Increased motivation in the operating theatre with technology.	1. Allows communication between trainer and trainee.2. Found to be educationally useful for trainees.3. Better understanding of surgical procedure by trainees.4. Better understanding of anatomy by trainees.	1. Quicker response to change in vital signs of simulated patient.2. No increase in bleeding, sweep speed, grams vaporized or laser distance from the tissue compared to no technology.3. Does not reduce surgeons operative performance.
Limitations of study	1. Small sample size.2. Questionnaire data collection system subject to recall bias.3. Personal bias (e.g. by previous experience in surgery).	1. Small sample size.2. Questionnaire data collection system subject to recall bias.	1. Small sample size.2. Questionnaire data collection system subject to recall bias.3. By repeating the activity straight after each other, using the technology second, experience gained in previous session may account for improved results.
Other aspects	1. Most would like to use the technology in the future.2. Most found it easy to use.	1. Seen to be useful for future training.2. High percentage would consider usage in future practice.3. Most found it easy to navigate.4. Questions raised regarding if a trainee relies on the technology would they become deskilled?	1. High percentage would want to use the technology again for a similar procedure.