Verosudil, also known as AR-12286, is a potent and selective Rho kinase inhibitor. AR-12286 was well tolerated and provided statistically significant reduction in IOP (intraocular pressure) in patients with XFS (exfoliation syndrome) and OHT (ocular hypertension) or XFG (exfoliative glaucoma). This drug may represent an additional therapeutic paradigm for the treatment of XFG.