Tafluprost ophthalmic solution 0.0015 % preserved with benzalkonium chloride (BAK) 0.001 % is available in several Asian countries, including Japan. In pivotal trials, BAK-preserved tafluprost ophthalmic solution 0.0015 % lowered intraocular pressure (IOP) more effectively than placebo in Asian patients with normal-tension glaucoma and was at least as effective as latanoprost ophthalmic solution 0.005 % in Asian patients with primary open-angle glaucoma or ocular hypertension. In other prospective studies in Asian patients with glaucoma or ocular hypertension, tafluprost ophthalmic solution 0.0015 % was at least as effective as latanoprost ophthalmic solution 0.005 % or travoprost ophthalmic solution 0.004 % in terms of IOP lowering, and was considered easier to use and/or store. The efficacy of tafluprost ophthalmic solution 0.0015 % was maintained in the longer term. Tafluprost ophthalmic solution 0.0015 % was generally well tolerated. In conclusion, BAK-preserved tafluprost ophthalmic solution 0.0015 % remains a useful option for the treatment of Asian patients with glaucoma and ocular hypertension.