25 February 2008 Measuring performance in virtual reality phacoemulsification surgery
Author Affiliations +
Proceedings Volume 6844, Ophthalmic Technologies XVIII; 684412 (2008) https://doi.org/10.1117/12.779572
Event: SPIE BiOS, 2008, San Jose, California, United States
We have developed a virtual reality (VR) simulator for phacoemulsification surgery. The current work aimed at developing a relative performance index that characterizes the performance of an individual trainee. We recorded measurements of 28 response variables during three iterated surgical sessions in 9 experienced cataract surgeons, separately for the sculpting phase and the evacuation phase of phacoemulsification surgery and compared their outcome to that of a reference group of naive trainees. We defined an individual overall performance index, an individual class specific performance index and an individual variable specific performance index. We found that on an average the experienced surgeons performed at a lower level than a reference group of naive trainees but that this was particularly attributed to a few surgeons. When their overall performance index was further analyzed as class specific performance index and variable specific performance index it was found that the low level performance was attributed to a behavior that is acceptable for an experienced surgeon but not for a naive trainee. It was concluded that relative performance indices should use a reference group that corresponds to the measured individual since the definition of optimal surgery may vary among trainee groups depending on their level of experience.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Per Söderberg, Per Söderberg, Carl-Gustaf Laurell, Carl-Gustaf Laurell, Wamidh Simawi, Wamidh Simawi, Eva Skarman, Eva Skarman, Leif Nordh, Leif Nordh, Per Nordqvist, Per Nordqvist, } "Measuring performance in virtual reality phacoemulsification surgery", Proc. SPIE 6844, Ophthalmic Technologies XVIII, 684412 (25 February 2008); doi: 10.1117/12.779572; https://doi.org/10.1117/12.779572

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