Active tremor cancellation by a "smart" handheld vitreoretinal microsurgical tool using swept source optical coherence tomography

Cheol Song, Peter Gehlbach, Jin U. Kang

Research output: Contribution to journalArticle


Microsurgeons require dexterity to make precise and stable maneuvers to achieve surgical objectives and to minimize surgical risks during freehand procedures. This work presents a novel, common path, swept source optical coherence tomography-based "smart" micromanipulation aided robotic-surgical tool (SMART) that actively suppresses surgeon hand tremor. The tool allows enhanced tool tip stabilization, more accurate targeting and the potential to lower surgical risk. Freehand performance is compared to smart tool-assisted performance and includes assessment of the one-dimensional motion tremor in an active microsurgeon's hand. Surgeon hand tremor-the ability to accurately locate a surgical target and maintain tool tip offset distances-were all improved by smart tool assistance.

Original languageEnglish (US)
Pages (from-to)23414-23421
Number of pages8
JournalOptics Express
Issue number21
StatePublished - Oct 8 2012


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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