• Rif'atunnailah Mat Isa, Mei Chan Chong, Wan Ling Lee, Tajunisah Iqbal, Mardiana Mansor, Airul Azizan Zainudin, and Mohd Iman Saiful Suhardi.
• From the Department of Nursing Science (Mat Isa, Chong, Lee, Mansor) and from the Department of Ophthalmology (Iqbal), Faculty of Medicine,University of Malaya, Kuala Lumpur; from the Department of Nursing (Mansor), Faculty of Medicine, University Sultan Zainal Abidin, Terengganu; from the Department of Medical Surgical Nursing (Mat Isa); from the Department of Professional Nursing Studies (Zainudin); and from the Department of Emergency Medicine (Suhardi), Kulliyyah of Medicine, International Islamic University Malaysia, Bander Indera Mahkota Campus Pahang, Malaysia.
• Saudi Med J. 2023 Dec 1; 44 (12): 129012941290-1294.

ObjectivesTo describe the development of a webpage based on the Intervention Mapping (IM) protocol and usability testing of the Diabetic Retinopathy Health Education Profram (DRHEP).MethodsThe mixed methods pilot feasibility study was carried out between April and September 2021, involving 16 patients with type 2 diabetes mellitus and 5 experts. The usability score was rated according to the System Usability Scale (SUS).ResultsThe average SUS score by the experts was 88. The patients gave a higher score of 85 for SUS, with 58 as the lowest. The average SUS score was 72. The findings indicate that the webpage is acceptable, good, and highly usable for users.ConclusionThe outcomes of this study signify the relationship between effective health applications and how their design might hamper their effectiveness in changing patients' behavior.Copyright: © Saudi Medical Journal.

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