I held off replying to this thread because I am also not in the best position to answer it accurately, I worked in orthopaedics but had no direct manufacturing responsibility
I was not specifically aware of any of our suppliers maintaining lighting levels, in cleanrooms there was a general expectation of it being bright for adequate inspection of parts that were being packed, but I'm not sure if that was driven by the cleanroom standard - this would not be specific for orthopaedics
I seem to recall that the labeling standard EN 1041 specified a light level for reading of labels, therefore it is reasonable to expect QC to be able to verify this - again not an orthopaedic specific requirement
My comments are from an EU perspective