Abstract
Context:The provision of ocular surgical interventions for poorer, less educated populations is increasing as a result of increased globalization and outreach. However, these populations still have trouble understanding surgical concepts and are not always fully informed decision makers.Aims:We aimed to test the effect that a multimedia addition to a traditional verbal informed consent would have on patient comprehension of relatively difficult cataract surgical concepts.Settings and Design:We conducted a randomized controlled trial with relatively uneducated patients reporting to a private surgical hospital in Chennai, India. 47 patients were placed into the intervention group and 50 patients were placed into the control group.Materials and Methods:The intervention group was presented with a scripted verbal informed consent as well as a 3-fold pamphlet and a presentation with a 3-dimensional model of the eye. The control group was only presented with a scripted verbal informed consent. The two groups were tested using an 11 item “True/False/I don’t know” quiz directly before the informed consent, directly after the informed consent, and one-day postoperatively.Statistical Analysis Used:Scores on the quiz were compared across groups and time-points using paired t-tests.Results:Patients in the both groups showed a significant improvement in scores between pre- and post-informed consent quizzes (P value on the order of 10-6) and the improvement in scores was significantly greater in the intervention group than the control group (P value on the order of 10-16). There was no significant difference observed in either group with regards to the change in scores between post-informed consent and post-operative quizzes.Conclusion:Multimedia aids in addition to a standard informed consent process are effective in improving patient comprehension even for patients with low literacy and limited knowledge of surgical interventions.
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