The actual complaint product was not returned for evaluation.A retention sample was tested for odor, color, clarity, ph, peroxide assay, and residual peroxide and the results met specifications.Review of the complaint history showed no similar complaints for h-corneal ulcer infectious, 1 similar for h-corneal edema and 8 similar for h-blurred vision reported.Review of the compounding and filling manufacturing batch records ( mbrs) showed them to be acceptable.A review of the formulation stability data for all this product lots currently enrolled in the stability program was conducted and all lots remain within specification through product shelf life.The chemistry and microbial finished product results were reviewed and found to be acceptable.This lot met all release criteria prior to product release.No anomalies were noted with the sample or lot, and the product was found to have met specifications in all areas prior to release.As a further check of the product, a retained sample from the same lot (maintained under controlled conditions) was tested and found to have met all requirements.The primary components (bottles and closures) are produced under controlled conditions and are double bagged and placed into shippers from the supplier.The shippers and the components inside are sterilized prior to being sent to alcon.The incoming components are evaluated to ensure that all key attribute, dimensional, and sterilization requirements are met prior to disposition.Incoming components for bottles and closures testing results were reviewed and found to be acceptable.No root cause could be determined.The manufacturer internal reference number is: (b)(4).
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