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Persistence and adherence with topical glaucoma therapy.

Beth L Nordstrom1, David S Friedman, Essy Mozaffari

  • 1Ingenix Epidemiology, Auburndale, Massachusetts 02466, USA. bnordstrom@epidemiology.com

American Journal of Ophthalmology
|October 18, 2005
PubMed
Summary
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Glaucoma patients often stop eye drops within six months. Prostaglandin medications significantly improve treatment persistence and adherence compared to other drug classes, especially for diagnosed glaucoma.

Area of Science:

  • Ophthalmology
  • Pharmacoeconomics
  • Health Services Research

Background:

  • Glaucoma treatment requires long-term adherence to topical ocular hypotensive therapy.
  • Understanding factors influencing treatment persistence and adherence is crucial for managing glaucoma effectively.

Purpose of the Study:

  • To investigate the patterns and predictors of treatment persistence and adherence in patients diagnosed with glaucoma or glaucoma suspects.
  • To compare the effectiveness of different drug classes in maintaining long-term treatment.

Main Methods:

  • Retrospective cohort study utilizing health insurance claims data.
  • Analysis of newly treated patients with diagnosed (n=3623) and suspect (n=1677) glaucoma.
  • Evaluation of persistence (duration of continuous treatment) and adherence (prevalence of use) for four drug classes: beta-blockers, alpha-agonists, carbonic anhydrase inhibitors, and prostaglandin analogs.

Related Experiment Videos

Main Results:

  • Nearly 50% of individuals discontinued topical ocular hypotensive therapy within six months.
  • Only 37% refilled their initial medication at three years.
  • Prostaglandins demonstrated superior persistence and adherence compared to other drug classes (HR 0.40-0.44).
  • Patients with diagnosed glaucoma showed higher adherence rates (RR 1.11) than those with suspect glaucoma.

Conclusions:

  • Prostaglandin analogs are associated with significantly better treatment persistence and adherence in glaucoma patients.
  • Diagnosed glaucoma patients exhibit greater adherence to therapy compared to glaucoma suspects.
  • Findings highlight the importance of medication choice in optimizing long-term glaucoma management.