The Philadelphia Glaucoma Detection and Treatment Project: Detection Rates and Initial Management

Ophthalmology. 2016 Aug;123(8):1667-1674. doi: 10.1016/j.ophtha.2016.04.031. Epub 2016 May 22.

Abstract

Purpose: To evaluate the detection rates of glaucoma-related diagnoses and the initial treatments received in the Philadelphia Glaucoma Detection and Treatment Project, a community-based initiative aimed at improving the detection, treatment, and follow-up care of individuals at risk for glaucoma.

Design: Retrospective analysis.

Participants: A total of 1649 individuals at risk for glaucoma who were examined and treated in 43 community centers located in underserved communities of Philadelphia.

Methods: Individuals were enrolled if they were African American aged ≥50 years, were any other adult aged ≥60 years, or had a family history of glaucoma. After attending an informational glaucoma workshop, participants underwent a targeted glaucoma examination including an ocular, medical, and family history; visual acuity testing, intraocular pressure (IOP) measurement, and corneal pachymetry; slit-lamp and optic nerve examination; automated visual field testing; and fundus color photography. If indicated, treatments included selective laser trabeculoplasty (SLT), laser peripheral iridotomy (LPI), or IOP-lowering medications. Follow-up examinations were scheduled at the community sites after 4 to 6 weeks or 4 to 6 months, depending on the clinical scenario.

Main outcome measures: Detection rates of glaucoma-related diagnoses and types of treatments administered.

Results: Of the 1649 individuals enrolled, 645 (39.1%) received a glaucoma-related diagnosis; 20.0% (n = 330) were identified as open-angle glaucoma (OAG) suspects, 9.2% (n = 151) were identified as having narrow angles (or as a primary angle closure/suspect), and 10.0% (n = 164) were diagnosed with glaucoma, including 9.0% (n = 148) with OAG and 1.0% (n = 16) with angle-closure glaucoma. Overall, 39.0% (n = 64 of 164) of those diagnosed with glaucoma were unaware of their diagnosis. A total of 196 patients (11.9%) received glaucoma-related treatment, including 84 (5.1%) who underwent LPI, 13 (0.8%) who underwent SLT, and 103 (6.2%) who were prescribed IOP-lowering medication.

Conclusions: Targeting individuals at risk for glaucoma in underserved communities in Philadelphia yielded a high detection rate (39.1%) of glaucoma-related diagnoses. Providing examinations and offering treatment, including first-line laser procedures, at community-based sites providing services to older adults are effective to improve access to eye care by underserved populations.

Publication types

  • Multicenter Study
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Aged
  • Aged, 80 and over
  • Antihypertensive Agents / therapeutic use*
  • Black or African American / ethnology
  • Corneal Pachymetry
  • Female
  • Glaucoma, Angle-Closure / diagnosis*
  • Glaucoma, Angle-Closure / ethnology
  • Glaucoma, Angle-Closure / therapy*
  • Glaucoma, Open-Angle / diagnosis*
  • Glaucoma, Open-Angle / ethnology
  • Glaucoma, Open-Angle / therapy*
  • Gonioscopy
  • Humans
  • Intraocular Pressure / physiology
  • Iridectomy*
  • Male
  • Middle Aged
  • Ocular Hypertension / diagnosis
  • Ocular Hypertension / ethnology
  • Ocular Hypertension / therapy
  • Philadelphia / epidemiology
  • Retrospective Studies
  • Tonometry, Ocular
  • Trabeculectomy*
  • Visual Acuity / physiology
  • Visual Fields / physiology

Substances

  • Antihypertensive Agents