Figure 3. Normalized ocular counterroll gain differences of individual patient.

Normalized gain differences of each individual patient were plotted against the mean and 95% confidence interval (CI) for 18 controls to show the interocular (A, B) and directional (C, D) gain asymmetries in patients. (A) Hypertropic eye excyclotorting gain vs hypotropic eye incyclotorting gain during head roll toward the hypotropic eye; positive values indicate that the former gain was higher than the latter, while negative values indicate the latter gain was higher than the former. (B) Hypertropic eye incyclotorting gain vs hypotropic eye excyclotorting gain during head roll toward the hypertropic eye. (C) Incyclotorting vs excyclotorting gains of the hypertropic eye. (D) Incyclotorting vs excyclotorting gains of the hypotropic eye. Hyper and hypo eyes = hypertropic and hypotropic eyes in patients (right and left eyes in normal participants). Incyclo = incyclotorsion; excyclo = excyclotorsion.