Measuring performance in virtual reality phacoemulsification surgery

Per Söderberg; Carl-Gustaf Laurell M.D.; Wamidh Simawi M.D.; Eva Skarman; Leif Nordh; Per Nordqvist

doi:10.1117/12.779572

25 February 2008 Measuring performance in virtual reality phacoemulsification surgery

Per Söderberg, Carl-Gustaf Laurell M.D., Wamidh Simawi M.D., Eva Skarman, Leif Nordh, Per Nordqvist

Proceedings Volume 6844, Ophthalmic Technologies XVIII; 684412 (2008) https://doi.org/10.1117/12.779572
Event: SPIE BiOS, 2008, San Jose, California, United States

Abstract

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.

Citation Download Citation

Per Söderberg, Carl-Gustaf Laurell M.D., Wamidh Simawi M.D., Eva Skarman, Leif Nordh, and Per Nordqvist "Measuring performance in virtual reality phacoemulsification surgery", Proc. SPIE 6844, Ophthalmic Technologies XVIII, 684412 (25 February 2008); https://doi.org/10.1117/12.779572

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available