Abstract
Background: Primary open angle glaucoma (POAG) is associated with older age. Antiglaucoma medications (AGM) are the cornerstones in the management of POAG. However, the relationship between AGM utilization, patients’ medication adherence (MA) and the therapeutic outcome remains largely unexplored among older persons.
 Objective: This study aimed to evaluate AGM utilization patterns, patients’ MA and intraocular pressure (IOP) reduction among older persons.
 Methods: This study was a 5-year retrospective review of medical records of consecutively selected older persons diagnosed of POAG at a University teaching hospital, in southwest Nigeria. Older persons were included if (1) aged 65 years and above, (2) had attended the outpatient ophthalmic clinics of the hospital between January 2010 and December 2015 (3) had at least 1-year clinic attendance during the period. The relationship between AGM utilization, patients’ self-reported MA and physicians’ comments on IOP was evaluated. A bivariate analysis was carried out to determine associations between variables and MA. Factors associated with IOP reduction were determined using a logistic regression. p<0.05 was considered statistically significant.
 Results: The carbonic anhydrase inhibitors comprised (66/191; 34.6%) of the total 191 AGM prescriptions. Majority of the participants (36/60; 60.0%) had reduced IOP with AGM alone, of which (13/36;36.1%) were on triple AGM. The participants’ MA (p=0.01) and number of AGM (p=0.04) were significantly associated with IOP reduction among the participants in a logistic regression.
 Conclusion: The number of AGM prescribed and the patients’ medication adherence can influence IOP reduction among older persons with POAG.
 Bangladesh Journal of Medical Science Vol.19(1) 2020 p.141-147
Highlights
Glaucoma is a major cause of irreversible blindness globally.[1]
This study aimed to evaluate associations between Antiglaucoma medications (AGM) utilization, patients’ medication adherence (MA) and intraocular pressure (IOP) reduction among older persons
Prevalence of Primary open angle glaucoma (POAG) Eighty-two medical records of older persons with glaucoma were available for assessment based on the selection criteria
Summary
Glaucoma is a major cause of irreversible blindness globally.[1]. The Africans are more burdened by the disease and have a greater risk of the disease progressing to blindness than other people in the world.[2]. The relationship between AGM utilization, patients’ medication adherence (MA) and the therapeutic outcome remains largely unexplored among older persons. Objective: This study aimed to evaluate AGM utilization patterns, patients’ MA and intraocular pressure (IOP) reduction among older persons. Methods: This study was a 5-year retrospective review of medical records of consecutively selected older persons diagnosed of POAG at a University teaching hospital, in southwest Nigeria. The relationship between AGM utilization, patients’ self-reported MA and physicians’ comments on IOP was evaluated. Factors associated with IOP reduction were determined using a logistic regression. The participants’ MA (p=0.01) and number of AGM (p=0.04) were significantly associated with IOP reduction among the participants in a logistic regression. Conclusion: The number of AGM prescribed and the patients’ medication adherence can influence IOP reduction among older persons with POAG
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