Intraocular Surgery on a Virtual Eye

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Intraocular Surgery on a Virtual Eye
2003.10.6 Mon

• - By Clemens Wagner, Markus Schill, and Reinhard
  Manner

Jang, Sie-kyung 2003/10/6
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Medical Simulation

• Microsurgical intervention
• Demand great deal of the surgeons manual
• Mental abilities over period of several hours
• Viewable only through a stereo microscope
• Simulation
• Practice difficult interventions
• Gain experience and self-confidence
• Pathological conditions can be selected
• New method can be developed without risk

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Medical Simulatoin

• Transmit information about the virtual
  environment
• Visual, haptic, acoustic human senses
• Satisfy the constraint of real-time interaction
• Resaerch Field

Computer graphics, Animation, Display, Interface
technologies, Image processing, Biochananical
modeling, Real-time system design
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EyeSi - Intro

• Research group ViPA in the Institute for
  Computational Medicine, University Mannheim
• Project
• ChainMail Soft Tissue Modeling
• EndoSim Simulation of an Endoscopy

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EyeSi - system
LCD shows stereoscopic images
Needle, Scissor, ..
Mechanical eye
Optical tracking system measures the
current position, direction of the
instruments
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EyeSi Optical Tracking

• Optical Tracking
• Provide greater accuracy
• Latency
• Conventional Optical tracking System
• High system load, latency is too great.
• EyeSi
• process camera data before it arrives at the PC
• By FPGA(Fiels Programmable Gate Array proccessor)

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EyeSi Simulation Visualization

• Calculate collisions between instruments and the
  eye
• Calculate the reaction
• Represent the shape of object by a mesh
• Texture Mapping
• Shadow cast, 3D view through stereo microscope

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Conclusion

• Simulation technology can provide versatile and
  realistic environments
• Learning, protacticing, and teaching complex
  procedures