An Amharic version of a pretested, structured questionnaire with questions about socio-demographic characteristics, MCS in glaucoma patients, and related factors was used to collect data and the English version of the questionnaire was available as a Supplementary Material. Three trained optometrists conducted face-to-face interviews to gauge MCS and examined patients’ medical records using a checklist to identify clinical variables. The study was overseen by one MSc optometrist and one principal investigator.
One of the most often employed validated coping measures is the Brief COPE inventory instrument which was uploaded as a supplementary material as part of the data collection tool of this study. The Brief COPE inventory instrument was created by Professor Charles Carver at the University of Miami. It is a 28-item questionnaire with 14 different scales for chronic disease stress (2 questions per category). Active coping, planning, positive reframing, acceptance, humor, religion, emotional support, and instrumental assistance are among the eight adaptive coping mechanism subscales. Additionally, it includes six unhealthy coping mechanisms, including self-distraction, denial, venting, substance abuse, behavioral disengagement, and self-blame.24 Due to the fact that this study solely focused on the MCS, it only utilized the tool’s maladaptive component. Each item was measured on a 4-point Likert scale ranging from 1 (I do not do this at all) to 4 (I do this a lot). Higher scores indicated greater usage of that coping strategy, which was determined by adding the results of each sub-scale separately. This scale was validated using a pre-test at Felege Hiwot referral hospital. The items’ reliability was checked by calculating Cronbach’s alpha value (0.78).