Acute-Onset Bilateral External and Internal Ophthalmoplegia: A Rare Presentation of Miller Fisher Syndrome in a Pediatric Patient.

Miller Fisher syndrome (MFS) is a rare Guillain-Barré syndrome (GBS) variant. The global incidence of GBS is approximately one to two in 100,000 children (aged 0 to 15 years) per year. Miller Fisher syndrome represents a further small subset, with the incidence being one to two in 1,000,000 children.