MRP1–5were reported to be expressed in the human cornea.101−103 For example, MRP4 has been shown to be clinically relevant in thepermeability of latanoprost, in the treatment of glaucoma.104 On the other hand, our data indicate that Mrp2and Mrp5 are not found, whereas Mrp1, 3, and 4 are quantified or ULOQin rabbit cornea (Mrp1: 4.3 ± 1.4; Mrp3: ULOQ; Mrp4: 1.7 ±0.8 fmol/cm2, respectively). This evidence concerns the gene ABCC4 and glaucoma.