|
A physician reported that during an intraocular lens (iol) implant procedure, the lens was compressed by plunger when the injector was fully push, the lens was able to be delivered, however the lens was damaged with scratches.
|
|
Additional information was provided in h.3., h.6.And h.11.The product was not returned for analysis.Only photo was returned.Plunger underride was observed on the returned photo.Photos provided show two company devices.The plunger appears to be fully advanced in both and appears to underride the intraocular lens (iol) in both.An additional photo shows what appears to be an implanted iol on a monitor screen.The reported scratch is not observed.We are unable to determine the root cause for the reported complaint injector trapped iol, with scratch.The product was not returned for analysis.Plunger underride was observed on the returned photo.The reported scratch was not observed.Plunger underride may occur:
¿ if the lens has become misaligned in the lens bay during the manufacturing process.¿ due to the use of a non-qualified viscoelastic.Material properties of non-qualified ophthalmic viscosurgical device (ovds) may contribute to underfill, overfill, misfolding of the haptics, or other inconsistent folding outcomes.¿ if inadequate viscoelastic is placed in the device this will cause inadequate coverage of the lens fold path which may cause the lens to advance incorrectly or become ¿stuck¿ in the device allowing the plunger to underride the lens.¿ if the operating room temperature is too high (greater than (>) 23 degrees centigrade (°c) / 73 degrees fahrenheit (°f)) lens folding consistency is negatively affected, the lens is more adherent, and this may inhibit lens advancement.¿ if ovd has not been allowed to come to operating room temperature over a 20-minute timeframe prior to use.Colder temperatures can increase the ovd viscosity, creating greater resistance during iol delivery, causing potential unsuccessful delivery outcomes.Any of the above listed causes alone, or in combination, may create the reported event.Based on the results from the manufacturing batch record, the products met release criteria.Investigation has been completed based on current information.No further action is warranted at this time.Based on our trend analysis, there are no adverse trends identified for this complaint and based on these findings the residual risk remains at an acceptable level.Investigation has been completed based on current information.No further action is warranted at this time.Based on our trend analysis, there are no adverse trends identified for this complaint and based on these findings the residual risk remains at an acceptable level.The manufacturer internal reference number is: (b)(4).H.10 reflects all related report numbers associated with this product event that have been submitted at this time.
|