Effectiveness of an Interactive Consulting System to Enhance Patients' Decision-making: A Randomized Controlled Trial

Cataract surgery is the only way to treat age-related cataract. For patients at early or moderate stages, cataract surgery is an elective surgery without objective indications. Therefore, patients are uaually not aware whether they should receive the surgery or not. In clinical practice, traditional Patient Decision Aids (PDA) booklets are used to provide health education to patients. However, PDAs lack real-time interaction with patients, and are unable to answer the new questions raised. Patients still have doubts about whether they should receive cataract surgery or not. In this study, the investigators aim to assess the effectiveness of an interactive Q\&A mobile application based on natural language processing technology to enhance informed decisions made by cataract patients.