A Survey on the Preference of Sustained Glaucoma Drug Delivery Systems by Singaporean Chinese Patients: A Comparison between Subconjunctival, Intracameral, and Punctal Plug Routes

Abstract

Purpose: To investigate the acceptance and preferences rates of 3 sustained drug delivery systems in glaucoma patients. Materials and Methods: A cross-sectional study involving 250 Chinese patients recruited from outpatient glaucoma clinics in Singapore using an interviewer-administered survey. Beliefs toward medicines, eye drops, illness perception, medication adherence, and health literacy were assessed using validated questionnaires. After receiving standard information on the 3 sustained drug delivery systems, that is, subconjunctival, intracameral, and punctal routes; each route's acceptance and attitudes were determined. Results: The subconjunctival (acceptance: 61.6%, n=154), intracam..