| Model Number |
VisuMax |
| Medical Device Problem Code |
Improper or Incorrect Procedure or Method (2017)
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| Health Effect - Clinical Codes |
Corneal Scar (1793); Eye Injury (1845); Visual Impairment (2138)
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| Date of Event |
06/24/2022
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Type of Reportable Event
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Serious Injury
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Event or Problem Description
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The surgeon reported that the patient developed a buttonhole paracentral to the visual axis which has resulted in a small stromal scar.Evaluation of the treatment video showed that the reported scar was a result of repeated suction loss and the immediate restart of the procedure with a dirty surface of the used treatment pack.The consequence of the dirty surface was an incomplete cut followed by manipulations during lenticule extractions that eventually caused the stromal scar.An assessment of visual acuity of the patient can only be made cautiously based on the available data.Currently, there is a loss of visual acuity and the patient notes an opacity that has continued to be monitored.
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Additional Manufacturer Narrative
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Based on the available information, the most possible root cause is user error as the surgeon continued the laser treatment although there was clearly visible foreign material on the patient's eye which caused an incomplete cut.Despite the incomplete cut, the doctor dissected the lenticule thereby causing a stromal trauma due to the tough dissection.
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Search Alerts/Recalls
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