Wanders, W. (2013) De invloed van verschillen in dieptezicht op de microchirurgische vaardigheden. thesis, Medicine.
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Abstract
Introduction: Because of difficulties in the training of ophthalmology residents in microsurgery between the years 1980-1995 and the growing complexity of microsurgical procedures, the Dutch ophthalmology society installed a stereo acuity test as a selection criterion for aspiring ophthalmology residents in 2001. Even though there is little evidence for such a selection criterion in scientific literature. Materials and Method: A group of medical students performed two different tasks, one under the operating microscope and one on a ophthalmology surgical simulator (EYESi). Each of these tasks was performed 7 or 5 consecutive times to establish a learning curve. After the tasks were performed, the students where divided into two groups depending on their stereo acuity. Group A (n=30): good stereo acuity and group B(n=9): poor stereo acuity. Results: The learing curve for test time (speed) showed a plateau fase after 5 iterations for a bead stringing task under the microscope and a plateau for test time after 3 iterations for the forceps task on the EYESi surgical simulator. For the bead stringing task and the forceps tasks there was a significant difference in average test time between group A en group B (p=0,001 and p=0,048). When we try to eliminate the learning curve and analyze the average test times during the plateau fase there still is a significant difference between group A and group B (p=0,011 and p=0,017). For other items on the bead stringing task and the forceps task on the EYESi surgical simulator there was no significant difference between group A en group B. Conclusion: There are significant differences in test time between subject with good stereo acuity and subjects with poor stereo acuity on a bead stringing task under the microscope and on the forceps task on the EYESi surgical simulator. These differences could not be compensated through multiple iterations. The subjects in group B showed great variability and some of the subjects scored better than the average score in group A. The selection of residents on a stereo acuity test alone seems to exclude some potentially good micro surgeons. More research on possible selection tools/tests is therefore needed.
| Item Type: | Thesis (Thesis) |
|---|---|
| Supervisor name: | Koopmans, Dr. S.A. |
| Faculty: | Medical Sciences |
| Date Deposited: | 25 Jun 2020 10:39 |
| Last Modified: | 25 Jun 2020 10:39 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/98 |
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