Background: This is a first-in-human study to determine the efficacy and tolerability of a new method of treating\nglaucoma using a low-power, low-frequency, focused therapeutic ultrasound for glaucoma (TUG) device designed\nto trigger an inflammatory reaction in the anterior chamber angle and trabecular meshwork to enhance outflow.\nThe use of the device is anticipated for mild or moderate open-angle glaucoma as an enhancement to outflow.\nMethods: In a two-branch clinical trial, a total of 26 primary open-angle glaucoma patients underwent a procedure\nconsisting of the external application of the TUG device. In branch 1, nine of these patients were na�¯ve to\npharmaceutical treatment or had been off of medication for over 6 months. In branch 2, 17 patients were\ntreated after a medication washout period. All patients in the study were followed for 12 months.\nResults: In branch 1, there was a decrease in intraocular pressure averaging over 20% lasting at least a year in\n74% of the eyes with non-normotensive open-angle glaucoma. In branch 2, an average of two visits while on\nmedication provided the comparison intraocular pressure (IOP) to the effect of the TUG treatment after washout.\nIt was seen that the intraocular pressure over the year post-treatment was equal to or better than the pharmaceutical\ncontrol in close to 80% of measurements.\nConclusion: A novel device for lowering intraocular pressure is described with a potential for adding to our\narmamentarium for treating glaucoma. This is a small cohort study which indicates beneficial trends
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