Hark LA, et al. – The goal of this work was to assess the rates of adherence to free follow–up eye exam appointments among participants in the Philadelphia Glaucoma Detection and Treatment Project. It was reported that those residing in underserved urban communities would gain an advantage from free eye exams in community sites and return for follow–up eye exams in these same settings. The interventions to improve eye exam appointment adherence in community–based settings to detect glaucoma–eye conditions necessitated advanced research.