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. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: Ophthalmology. 2015 Apr 24;122(7):1308–1316. doi: 10.1016/j.ophtha.2015.03.026

Figure 1. Prevalence of Important Barriers to Medication Adherence.

Figure 1

The items on the survey describing barriers to medication adherence asked subjects to rate the importance of eleven commonly cited reasons that make it “hard for patients to take glaucoma eye drops.” Subjects rated whether each of these eleven barriers was important to them on a visual analogue scale (VAS) anchored between “strongly agree” and “strongly disagree.” Figure 1 shows the percent of adherent and non-adherent subjects who rated a barrier as ≥ midpoint on the VAS.