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User Behavior Evaluation in Robot-Assisted Retinal Surgery
Changyan He1, Ali Ebrahimi2, Marina Roizenblatt3,4
1School of Mechanical Engineering and Automation at Beihang University, Beijing, 100191 China, and also with LCSR at the Johns Hopkins University, Baltimore, MD 21218 USA (changyanhe@jhu.edu).
Summary
Robotic assistance in retinal microsurgery improves precision by reducing tremor and refining insertion speed. However, it increases surgery duration and applied forces on the sclera.
Area of Science:
- Ophthalmology
- Robotics
- Surgical Technology
Background:
- Retinal microsurgery demands exceptional skill with minimal error tolerance.
- Robotic assistance offers potential benefits like enhanced precision and tremor cancellation.
- However, robotic systems can introduce challenges such as stiffness and nonintuitive controls, potentially hindering surgeon dexterity.
Purpose of the Study:
- To experimentally evaluate user behavior during mock retinal surgery with and without robotic assistance.
- To quantify the impact of robotic assistance on surgical performance metrics.
Main Methods:
- A preliminary study involving four users performing three mock retinal surgery tasks.
- Tasks were conducted using both freehand and robot-assisted techniques.
- User behavior was measured by forces applied to the sclera, tool insertion speed and depth, and surgery duration.
Main Results:
- Robot assistance prolonged surgery duration and increased scleral manipulation forces.
- Robot assistance refined tool insertion velocity and effectively eliminated hand tremor.
- Analysis included univariate user behavior and correlations between multiple behavioral parameters.
Conclusions:
- Robotic assistance in retinal microsurgery presents a trade-off between improved precision and potential drawbacks.
- Further research is needed to optimize human-robot interaction for retinal microsurgery.
- Findings highlight the need to balance robotic capabilities with surgeon dexterity and control.
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