2020–2021 BCSC Basic and Clinical Science Course™
Chapter 7: The Patient With Abnormal Ocular Motility or Diplopia
Infranuclear Causes of Diplopia
Neuromuscular Junction Causes of Diplopia
The prototypical disease of the neuromuscular junction is myasthenia gravis. It typically produces variable diplopia and ptosis with any pattern of pupil-sparing, painless ocular misalignment. Conversely, it never produces sensory symptoms, pain, or pupillary dysfunction. Accordingly, myasthenia gravis belongs in the differential diagnosis of any such case of diplopia (see Chapter 14).
Excerpted from BCSC 2020-2021 series: Section 5 - Neuro-Ophthalmology. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.