Association between topical β-blocker use and asthma attacks in glaucoma patients with asthma: a cohort study using a claims database

To investigate the association between the use of topical β-blockers and subsequent asthma attacks in glaucoma patients with asthma.This was a retrospective longitudinal cohort study using an administrative claims database. All patients aged 20 years or older who were registered in the health insurance claims database updated and managed by JMDC Inc. (Tokyo, Japan). Patients who were newly prescribed eye drops for glaucoma treatment were...