Horizontal conjugate gaze palsy in eosinophilic meningitis.

Two cases of eosinophilic meningitis who presented with headache and strabismus are reported. Pertinent physical examination revealed unilateral horizontal conjugate gaze palsy with absence of doll's eye maneuver and hemiparesis. The etiologic agent of eosinophilic meningitis is presumed to be Angiostrongylus cantonensis and the infected location that produce horizontal conjugate gaze palsy was a pontine lesion.