No. Unless they are a special edition (Ducati, etc) or polarized there should be no etching. Polaozrized should be on only one lens in all caps. No other markings on the lens. For some reason the last few weeks I’ve seen multiple seller list them as polarized and they were not actually polarized.Assuming they'll always have an "O" cut into them?
Once you have the lenses there are ways to verify they are OEM such as being thicker and smooth on the edges. There other post that go into that detail. Typically if you ask they will often tell you if they are not. For some collectors, they do not care if they are OEM but it does effect the value.