Impact of therapeutic prism treatment on ocular motor cranial nerve palsies among Moroccan patients

Abstract

PURPOSE: This study evaluates the effectiveness of prism therapy in patients with ocular motor palsies affecting the oculomotor (nerve III), abducens (nerve VI), and trochlear (nerve IV) nerves, focusing on four key criteria: deviation, diplopia, head posture, and ptosis. METHODS: A comparative analysis was conducted on patients diagnosed with nerve III, nerve VI, or nerve IV palsy. Deviation measurements, diplopia occurrence, head posture abnormalities, and ptosis presence were assessed before and after prism therapy. Statistical analysis was performed to determine significant changes within each group and to compare outcomes across the three palsy types. RESULTS: > .9). CONCLUSION: Prism therapy appears effective in improving ocular alignment and visual symptoms across all three types of ocular motor palsy. Its benefits extend to reducing diplopia and abnormal head posture, and selectively improving ptosis and torsional symptoms in certain cases. These findings support the broader application of prism therapy as a valuable non-surgical management strategy.