The Efficacy of Online Case-Based Assignments in Teaching Veterinary Ophthalmology.

Veterinarians are required to use clinical reasoning skills to successfully manage their patients with eye diseases. Case-based assignments can be an effective tool for teaching problem-solving skills. Very few models or online modules exist to deepen the instruction of veterinary ophthalmic clinical reasoning skills. The current study aims to assess the value of online case-based assignments given to students during the Ontario Veterinary College's Phase 4 ophthalmology rotation over a 4-year period. Nine case-based assignments were developed as an online module and provided signalment, history, ophthalmic database, and clinical photography. For each case, students were required to describe the ocular lesions, provide a diagnosis, and develop a short-term and long-term treatment plan. A grading rubric was created, and student feedback was collected using an online survey. A frequency analysis was conducted to evaluate final grades across each case. This analysis was also completed for grades of each question across all cases. A total of 285 students were graded individually. Students' grades were normally distributed across each assignment. Students performed better on lower-order cognitive skills (description of ocular lesions) but poorer on high-order cognitive skills (therapeutic plans). These results suggest that students tend to have difficulty with the analysis and interpretation of these cases. Student feedback reported case-based assignments were useful. Online case-based assignments may be a useful adjunctive teaching tool for students rotating through ophthalmology in their clinical year, and this tool could be considered for other specialized rotations.