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The micor extractor was returned to the manufacturer and evaluated.The device was subjected to visual inspection and functional testing.There was no damage or device malfunction identified and the device met specifications and performed as intended.The micor extractor device history records were reviewed for this manufacturing lot and there were no discrepancies or unusual findings that relate to the reported event.Based on the information reviewed, there is no evidence to indicate the presence of a potential quality issue with respect to manufacturing, design, or labeling.The surgical video was provided to the manufacturer for review and the following summary represents the medical review by the company medical affairs director / ophthalmologist.Capsulorhexis was performed without issue, however, it was noted that the tissue was not removed from the incision afterwards.Lens extraction began at time 4:40.A secondary instrument was inserted through the paracentesis and extended to the posterior capsule behind the crystalline lens.Cataract extraction continued as expected for a grade 4+ lens.At time 12:04 a posterior capsule tear was potentially visible at the 10 o'clock position.The micor extractor tip was positioned in the middle of the anterior chamber at the iris plane, but was not near the potential tear.It was noted that this was close to the location of the distal tip of the secondary instrument.At 14:02 viscoelastic was injected.At 17:09 the capsular tear was fully visible.A sulcus-fixated posterior chamber intraocular lens was placed at time 24:00 then cortical material, viscoelastic, and one small lens fragment were removed with the micor extractor bag polishing accessory.Although the micor extractor was in the eye at the time of the tear, the micor tip was not observed to direct contact the posterior capsule.The device labeling identifies capsular rupture as an inherent safety risk.Manufacturer's reference #: (b)(4).
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A patient underwent cataract surgery in the left eye on (b)(6) 2024 where the micor lens fragmentation system was used to remove the cataractous lens fragments.The capsular bag ruptured during cortical removing using the micor extractor.A sulcus-fixated intraocular lens was implanted.The surgeon attributed the capsular damage to the micor extractor tip.At the one-day postoperative visit there was significant corneal edema.The patient's visual potential is unclear given medical history.Additional patient follow-up was provided by the surgeon on may 30, 2024 who reports the patient is doing well.At the patient's last visit on may 29, 2024, topic steroids were being tapered and visual acuity improved compared to prior visit; however, iop increased to 28 mmhg (on 3 topical ocular hypotensive medications).Refer to b6 for details.The patient is scheduled for next follow-up on june 3, 2024.
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