A Shell Model for Real-time Simulation of intra-ocular Implant Deployment

Olivier Comas (1) , Stéphane Cotin (1) , Christian Duriez (1)

1 SHACRA - Simulation in Healthcare using Computer Research Advances

With 30 million interventions a year worldwide, cataract surgery is one of the most frequently performed procedures. Yet, no tool currently allows teaching all steps of the procedure without putting pa- tients at risk. A particularly challenging stage of this surgery deals with the injection and deployment of the intra-ocular lens implant. In this paper we propose to rely on shell theory to accurately describe the com- plex deformations of the implant. Our approach extends the co-rotational method used in finite element analysis of in-plane deformations to incor- porate a bending energy. This results in a relatively simple and compu- tationally efficient approach which was applied to the simulation of the lens deployment. This simulation also accounts for the complex contacts that take place during the injection phase.

Domaines: Synthèse d'image et réalité virtuelle [cs.GR]

Olivier Comas, Stéphane Cotin, Christian Duriez. A Shell Model for Real-time Simulation of intra-ocular Implant Deployment. International Symposium on Computational Models for Biomedical Simulation, Jan 2010, Phoenix, United States. pp.160--170, ⟨10.1007/978-3-642-11615-5_15⟩. ⟨hal-00533430⟩