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During processing of the complaint, attempts were made to obtain complete event, patient, and device information.Three attempts have been made at obtaining additional information; however no additional information has been provided.The lens was not returned; thus, a proper device analysis could not be completed.The yamane procedure is a technique used for performing suture less intrascleral fixation of a posterior chamber intraocular lens (iol).The haptics of the iol are externalized with a 27-gauge needle and passed through the ciliary sulcus using a double needle technique.This invasive iol fixation technique requires a lot of manipulation to position the haptics into the scleral tunnel.This lens is intended to be implanted in the capsular bag; therefore, this lens was used off-label.It is believed that this type of technique induces a large amount of force while trying to position the haptics in the scleral tunnel.The device history records were reviewed and there were no non-conformities or deviations noted during the manufacturing of the lenses that would have contributed to the nature of this complaint.Additionally, lenses are 100 % inspected before they leave our manufacturing site.Therefore, we are confident that the lens was processed per standard operation procedures and inspections and met all of the criteria for release.Failed injection is known to be caused by numerous factors including, but not limited to: loading strategy, lens placement technique, accessory device support, poor handling during folding and inserting.The dfu provides precautions for lens handling and the injection process by stating that: "improper handling of the lens may cause damage to the haptics and the optics" a review of the device history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other incidents from this lot.Based on the information reviewed, there is no indication of a product quality issue with respect to manufacture, design or labeling of the lens.The reported issue appears to be related to the operational context of the procedure and not a malfunction of our device.However, the use of an additional lens to correct the patient's vision is considered medical intervention to prevent permanent impairment to the patient.Our lenses are 100% inspected before they leave our manufacturing site.Therefore, we are confident that the lenses were processed per standard operation procedures and inspections, and met all of the criteria for release.
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