ABSTRACT
PURPOSE: Objectively evaluate the ability of visually disabled glaucoma patients to successfully administer a single drop onto their eye. DESIGN: Prospective, observational study. PARTICIPANTS: Experienced glaucoma patients with Early Treatment of Diabetic Retinopathy Study visual acuity (VA) of ≤ 6/18 (≤ 20/60) ≥ 1 eye, or moderate or severe visual field damage in ≥ 1 eye. METHODS: Subjects were "low vision" (20/60 ≤ VA <20/200) or "blind" (light perception