FDA Adverse Event Injury Summary report: N

LADARVISION 4000

MDR report key: 824050 · Received February 28, 2007

Report

Report Number
1061857-2007-00022
Event Type
Injury
Date Received
February 28, 2007
Date of Event
October 6, 2006
Report Date
November 29, 2006
Manufacturer
ALCON - ORLANDO TECHNOLOGY CENTER
Product Code
DZS
Removal / Correction Number
NA
Adverse Event
Yes
Report Source
Manufacturer report
Reporter Location
AZ, US
Reporter Occupation
OTHER

Narratives

Additional Manufacturer Narrative · 1

A SYSTEM PERFORMANCE VERIFICATION WAS PERFORMED ON THIS SYSTEM. ANALYSIS INDICATES THE SYSTEM WAS OPERATING WITHIN SPECIFICATIONS FOR THE RECORDED PARAMETERS DURING THE TIME OF THIS PATIENT'S SURGERY. DETERMINATION OF ROOT CAUSE: ASSESSMENT: THE CONCLUSION OF THE DEVICE INVESTIGATION INDICATES THE SYSTEM PERFORMED WITHIN SPECIFICATIONS DURING THIS PATIENT'S SURGERY. NON-PRODUCT FACTORS INCLUDING PATIENT RESPONSE TO THE LASER ABLATION, PATIENT HEALING CHARACTERISTICS AND PREOPERATIVE PATIENT SELECTION WERE REVIEWED. IN THIS CASE, SPECIFIC NON-PRODUCT FACTORS THAT COULD HAVE CONTRIBUTED TO THE LOSS OF BCVA FOR THE OS COULD NOT BE DETERMINED. NO COMMENTS OR EXPLANATIONS WERE DOCUMENTED BY THE SITE NOR WERE ADDITIONAL TESTS (SUCH AS PIN-HOLE ACUITY) WERE PERFORMED TO CONFIRM OR DENY THE LOSS OF BCVA. IN REGARDS TO THE INDUCED ASTIGMATISM FOR BOTH EYES, POSTOPERATIVE TOPOGRAPHIES WERE NOT PROVIDED TO DETERMINE THE CAUSE OF THE INDUCED ASTIGMATISM, THEREFORE SPECIFIC NON-PRODUCT FACTORS COULD NOT BE DETERMINED. FOR THE .75D OVERCORRECTION NOTED FOR THE OS, NO SPECIFIC NON-PRODUCT FACTORS COULD BE DETERMINED. CONCLUSION: BASED ON THE INFORMATION PROVIDED, AN INDIVIDUAL PATIENT RESPONSE AND HEALING CHARACTERISTICS MAY HAVE CONTRIBUTED TO THE OUTCOMES.

Description of Event or Problem · 1

A SYSTEM OPERATOR REPORTS ONE CUSTOM PATIENT WITH AN OVERCORRECTION POST-OP. PATIENT RECORDS PROVIDED INDICATE AT APPROXIMATELY 3.5 MONTHS POST-OP, THIS PATIENT WAS OVERCORRECTED BY .75 DIOPTERS IN THE LEFT EYE. DURING THE INVESTIGATION, IT WAS FOUND THAT THIS PATIENT ALSO EXHIBITED A 2-LINE DECREASE IN BCVA IN THE LEFT EYE AND BOTH EYES EXHIBITED A SLIGHT INCREASE IN ASTIGMATISM; -1 DIOPTER IN THE RIGHT EYE AND -.75 DIOPTERS IN THE LEFT EYE.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 LADARVISION 4000 OPHTHALMIC EXCIMER LASER SYSTEM DZS ALCON - ORLANDO TECHNOLOGY CENTER NA NA

Patients

Seq Age Sex Outcome Treatment
1 32 YR Other