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. 2018 Nov 8;11(6):10.16910/jemr.11.6.1.
doi: 10.16910/jemr.11.6.1.

Eye-Hand Coordination Patterns of Intermediate and Novice Surgeons in a Simulation-Based Endoscopic Surgery Training Environment

Damla Topalli  1 , Nergiz Ercil Cagiltay  1
Affiliations

Eye-Hand Coordination Patterns of Intermediate and Novice Surgeons in a Simulation-Based Endoscopic Surgery Training Environment

Damla Topalli et al. J Eye Mov Res. .

Abstract

Endoscopic surgery procedures require specific skills, such as eye-hand coordination to be developed. Current education programs are facing with problems to provide appropriate skill improvement and assessment methods in this field. This study aims to propose objec-tive metrics for hand-movement skills and assess eye-hand coordination. An experimental study is conducted with 15 surgical residents to test the newly proposed measures. Two computer-based both-handed endoscopic surgery practice scenarios are developed in a simulation environment to gather the participants' eye-gaze data with the help of an eye tracker as well as the related hand movement data through haptic interfaces. Additionally, participants' eye-hand coordination skills are analyzed. The results indicate higher correla-tions in the intermediates' eye-hand movements compared to the novices. An increase in intermediates' visual concentration leads to smoother hand movements. Similarly, the novices' hand movements are shown to remain at a standstill. After the first round of practice, all participants' eye-hand coordination skills are improved on the specific task targeted in this study. According to these results, it can be concluded that the proposed metrics can potentially provide some additional insights about trainees' eye-hand coordi-nation skills and help instructional system designers to better address training requirements.

Keywords: Eye movement; eye tracking; eye-hand coordination; gaze; hand-movement; haptic device; saccades; surgical skill assessment.

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Conflict of interest statement

The authors declare that the contents of the article are in agreement with the ethics described in http://biblio.unibe.ch/portale/elibrary/BOP/jemr/ethics.html and that there is no conflict of interest regarding the publication of this paper.

Figures

Figure. 1
Figure. 1
Camera’s FOV in Simulation Environment
Figure. 2
Figure. 2
Eye-Gaze and Hand Motion Coordinates in Scenario-2
Figure. 3
Figure. 3
Scenarios for Experimental Study
Figure. 4
Figure. 4
Procedure of the Experimental Study
Figure. 5
Figure. 5
Experimental Setup
Figure. 6
Figure. 6
‘Simulated’ Performance of a Participant (Scenario-2)
Figure. 7
Figure. 7
Mean for Eye and Hand Metrics for each group in Scenario-1
Figure. 8
Figure. 8
Mean for Eye and Hand Metrics for each group in Scenario-2
See this image and copyright information in PMC

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