PSMA2 and glaucoma: With regard to IOP-lowering medications, the following proportions were found for all glaucoma patients: 75.9% beta-blockers (217 out of 286), 89.2% PGA (255 out of 286), 77.3% carbonic anhydrase inhibitors (CAI, 221 out of 286), 66.8% alpha-2-selective adrenergic agonists (191 out of 286) and 18.2% parasympathomimetics (52 out of 286).