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. 2011 Dec;118(12):2398-402.
doi: 10.1016/j.ophtha.2011.05.013.

The relationship between glaucoma medication adherence, eye drop technique, and visual field defect severity

Betsy Sleath  1 , Susan Blalock, David Covert, Jennifer L Stone, Asheley Cockrell Skinner, Kelly Muir, Alan L Robin
Affiliations

The relationship between glaucoma medication adherence, eye drop technique, and visual field defect severity

Betsy Sleath et al. Ophthalmology. 2011 Dec.

Abstract

Objective: The purpose of the study was to examine (1) how patient adherence and eye drop technique were associated with visual field defect severity and (2) how general glaucoma adherence self-efficacy and eye drop technique self-efficacy were related to visual field defect severity.

Design: Cross-sectional study conducted at a single private practice site.

Participants: Patients using eye drops for their glaucoma.

Methods: Subject adherence to glaucoma medications through Medication Events Monitoring System (MEMS) devices were measured, and eye drop instillation technique was assessed by video recording. General glaucoma medication adherence self-efficacy was measured using a 10-item scale, and eye drop technique self-efficacy was measured using a 6-item scale. Multivariate logistic regression was used to analyze the data.

Main outcome measures: Visual field defect severity.

Results: Patients who were less than 80% adherent according to the MEMS devices were significantly more likely to have worse defect severity. Patients with lower scores on the general glaucoma medication adherence self-efficacy scale also were significantly more likely to have worse defect severity. Eye drop technique and eye drop technique self-efficacy were not related significantly to visual field defect severity.

Conclusions: Eye care providers need to assess patient adherence and to work with those patients with poor adherence to find ways to improve their ability and self-efficacy in using their glaucoma medications.

Financial disclosure(s): Proprietary or commercial disclosure may be found after the references.

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Conflict of interest statement

No conflict of author exists for any author.

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