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Additional information provided in sections d.9., h.3., h.6., and h.11.The product was returned for analysis, and the reported complaint was observed.The device was returned loose in the product carton.The lock-out assembly has been removed.Viscoelastic is observed in the device.The plunger has been advanced outside of the device and is advanced over the intraocular lens (iol).The iol is advanced into the nozzle entry and is damaged.The plunger tip is bent.The product investigation could not identify the root cause for the reported complaint "tip was crooked and unable to use".Plunger tip was observed to be bent.All plungers are 100% inspected as per approved manufacturing procedures at the vendor site and the observed plunger damage would not meet the release criteria.The product was subject to handling.We are unable to confirm the device preparation.Plunger override was observed on the returned product.Plunger override 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 devices (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 override the lens.If the operating room temperature is too high (> 23°c / 73° f) lens folding consistency is negatively affected, the lens is more adherent, and this may inhibit lens advancement.Any of the above listed causes alone, or in combination, may create plunger override event.Based on this investigation findings, we are unable to verify if the product contributed to the event.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.
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