Table 2.
Scales for potential moderators and mediators of glaucoma medication adherence for exploratory analysis
| Moderators | Mediators | Time pointa | Original source |
|---|---|---|---|
| Visual function | 1 | National Eye Institute Visual Function Questionnaire (Mangione 2011) | |
| Functional health literacy | 1 | Functional Health Literacy (Chew 2004) | |
| Health literacy | 2 | Rapid Estimation of Adult Literacy in Medicine (Arozullah 2007) | |
| Glaucoma symptoms | 1 | Glaucoma Symptom Scale (Lee 1998) | |
| Perceived Stress | 1 | Perceived Stress Scale (Cohen 1983) | |
| Consideration of future consequences | 1 | Consideration of Future Consequences Scale (Strathman 1984) | |
| Glaucoma-related distress | 1, 3, 5, 6 | Diabetes Distress Scale (Polonsky 2005) | |
| Barriers to glaucoma medication adherence | 1, 3, 5, 6 | Glaucoma Treatment Compliance Assessment Tool (Barker 2015) | |
| Social support | 1, 5, 6 | Diabetes Specific Social Support Needs (Rosland 2008) | |
| Depression | 2, 5, 6 | Patient Health Questionnaire-9 (Kroenke 2001) | |
| Hopefulness, confidence and motivation to manage glaucoma | 1, 3, 5, 6 | Hopefullness, Confidence and Motivation Rulers (Miller and Rollnick 2012) | |
| Perceived benefit to Glaucoma Treatment | 1, 5, 6 | Perceived Benefits of Treatment (Chao 2005) |
aTime Point 1 = baseline (0 months), 2 = intervention 1 (alarms, 3 months), 3 = intervention 2 (eyeGuide, 6 months), 4 = eyeGuide follow-up visit (8 months), 5 = intervention end (12 months), 6 = end of adherence monitoring (24 months, end of study)