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Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
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Gaze-contingent perceptually enabled interactions in the operating theatre.

Alexandros A Kogkas1, Ara Darzi2, George P Mylonas2

  • 1HARMS Lab, Department of Surgery and Cancer, Imperial College London, St Mary's Hospital, 20 South Wharf Road, 3rd Floor Paterson Centre, London, W21PF, UK. a.kogkas15@imperial.ac.uk.

International Journal of Computer Assisted Radiology and Surgery
|April 12, 2017
PubMed
Summary

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This study introduces a new framework using eye-tracking and computer vision to improve surgical safety. The system projects a surgeon's fixation point in 3D space, aiming for a more efficient operating theatre.

Area of Science:

  • Medical technology
  • Surgical innovation
  • Human-computer interaction

Background:

  • Operating theatre safety and efficiency are critical challenges in modern surgery.
  • Current systems often lack integrated perceptual data, limiting real-time decision-making.
  • A need exists for advanced frameworks to enhance surgical performance and patient outcomes.

Purpose of the Study:

  • To present core functionalities of a low-cost framework enabling perceptually enabled interaction in the surgical environment.
  • To improve surgical outcome and patient safety through integrated information collection and utilization.
  • To develop a system that leverages multi-source perceptual data for enhanced surgical awareness.

Main Methods:

  • Utilizing the synergy of wearable eye-tracking and Simultaneous Localization and Mapping (SLAM) computer vision.
Keywords:
3D eye-trackingGaze contingentPerceptually enabled interactionsRobot controlSLAMSmart operating theatre

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  • Integrating an articulated collaborative robotic arm and laser pointer for 3D spatial projection.
  • Demonstrating a core functionality: projecting the surgeon's fixation point in real-time 3D space.

    • Main Results:

    • The system was evaluated using 60 fixations on predefined targets at varying distances.
    • The median overall system error was measured at 3.98 cm.
    • The real-time potential of the framework was highlighted, indicating its applicability in dynamic surgical settings.

    Conclusions:

    • This work introduces and experimentally validates core functionalities of a novel surgical framework.
    • The developed framework aims to enhance safety and efficiency within the operating theatre.
    • Preliminary results show promising accuracy and real-time capabilities for surgical applications.