SLC17A6 and glaucoma: Other molecules with early axonal accumulation were associated with the glutamatergic presynaptic machinery, such as vesicular glutamate transporter 2 (VGluT2), synaptic vesicle protein 2 (SV2) and synaptophysin, as evidenced 2 days after glaucoma induction by photocoagulation of the limbus and three episcleral veins in CD-1 mice.