The OM and OM + NF treatments had 106.5% (0.49 g kg−1) and 56.5% (0.26 g kg−1), and 93.5% (0.43 g kg−1) and 47.8% (0.22 g kg−1) higher accumulation of PON at 0–10 and 10–20 cm soil layers, respectively, when compared to the CK. This evidence concerns the gene PON1 and ocular melanoma.