Livia Faes1,2, Kathrin Golla1, Meriam Islam2, Kenny R Lienhard3,4, Martin K Schmid1,3, Dawn A Sim2, Lucas M Bachmann5,6. 1. Eye Clinic, Cantonal Hospital of Lucerne, Lucerne, Switzerland. 2. Moorfields Eye Hospital, London, UK. 3. Oculocare Medical AG, Zurich, Switzerland. 4. Medignition AG, Research Consultants, Zurich, Switzerland. 5. Oculocare Medical AG, Zurich, Switzerland. bachmann@medigniton.com. 6. Medignition AG, Research Consultants, Zurich, Switzerland. bachmann@medigniton.com.
Abstract
PURPOSE: To evaluate the usability and long-term adherence to the mobile hyperacuity app Alleye in patients with retinal pathology. METHODS: We enroled 72 patients (95 eyes) mainly treated for wet AMD (48/95; 50.5%). We calculated changes of clinical characteristics and the System Usability Score (SUS), and personal ratings of usefulness and number of tests performed per month at a follow-up visit of eighteen months. RESULTS: At baseline, mean best corrected visual acuity (BCVA) was 74.9 letters (SD 14.8), mean age was 69.9 (SD 11.4) and 39/72 (54.2%) were female. Of included patients, 47/72 (65.2%) reported to use mobile devices daily. The retention rate until last follow-up was 73.6 % (53/72). The median SUS score at baseline was 90 (interquartile range (IQR) 82.5-95) and 92.5 (IQR 82.5-95) in the follow-up. No association between changes of SUS and clinical characteristics was seen. At baseline, 76.4% (55/72) stated that they would recommend the app to a friend, 83.3% (60/72) were very satisfied with the app and 58/72 (80.6%) of respondents said they trusted the app. These assessments remained similar among patients remaining on the program until the follow-up. Patients who dropped out of the study (n = 19) did not differ in age, gender, BCVA, and SUS at baseline, but stated that they did not use the mobile device daily (Odds Ratio 7.40 (95%CI: 2.32-23.65); p = 0.001). CONCLUSIONS: The majority of users willing to perform home monitoring with the Alleye app are satisfied with the usability and have a positive attitude towards its trustworthiness and usefulness.
PURPOSE: To evaluate the usability and long-term adherence to the mobile hyperacuity app Alleye in patients with retinal pathology. METHODS: We enroled 72 patients (95 eyes) mainly treated for wet AMD (48/95; 50.5%). We calculated changes of clinical characteristics and the System Usability Score (SUS), and personal ratings of usefulness and number of tests performed per month at a follow-up visit of eighteen months. RESULTS: At baseline, mean best corrected visual acuity (BCVA) was 74.9 letters (SD 14.8), mean age was 69.9 (SD 11.4) and 39/72 (54.2%) were female. Of included patients, 47/72 (65.2%) reported to use mobile devices daily. The retention rate until last follow-up was 73.6 % (53/72). The median SUS score at baseline was 90 (interquartile range (IQR) 82.5-95) and 92.5 (IQR 82.5-95) in the follow-up. No association between changes of SUS and clinical characteristics was seen. At baseline, 76.4% (55/72) stated that they would recommend the app to a friend, 83.3% (60/72) were very satisfied with the app and 58/72 (80.6%) of respondents said they trusted the app. These assessments remained similar among patients remaining on the program until the follow-up. Patients who dropped out of the study (n = 19) did not differ in age, gender, BCVA, and SUS at baseline, but stated that they did not use the mobile device daily (Odds Ratio 7.40 (95%CI: 2.32-23.65); p = 0.001). CONCLUSIONS: The majority of users willing to perform home monitoring with the Alleye app are satisfied with the usability and have a positive attitude towards its trustworthiness and usefulness.