Magnetic Resonance Imaging of the Functional Anatomy of the Inferior Rectus Muscle in Superior Oblique Palsy

摘要

PurposeBiomechanical modeling consistently indicates that superior oblique (SO) weakness alone is insufficient to explain the large hypertropia often observed in SO palsy. Magnetic resonance imaging (MRI) was used to investigate if any size or contractility changes in the inferior rectus (IR) may contribute.