| RGC | retinal ganglion cells |
| OHT | ocular hypertension |
| IOP | intraocular pressure |
| DHE | dihydroethidium |
| TM | trabecular meshwork |
| HR | histamine receptor |
| MC | mast cells |
| 8OHdG | 8-hydroxy-2′-deoxy-guanosine |
| DAPI | 4′,6′-diamidino-2-phenylindole |
| RI | resistivity index |
| CDI | color doppler imaging |