Other Neurological Disorders: Migraine, Neurosarcoidosis, Schizophrenia, Obstructive Sleep Apnea-Hypopnea Syndrome and Bipolar Disorder

Optical coherence tomography (OCT) is a relatively recent, reproducible, noninvasive, noncontact in vivo imaging technique similar to ultrasonography except that it uses infra-red wavelengths and has a sensitivity of 8–10 μm. Numerous studies have demonstrated a thinning in retinal nerve fiber layer (RNFL) measurements in neurodegenerative disorders including multiple sclerosis, Alzheimer’s disease, and Parkinson’s disease. In this chapter we present an update on the use of OCT in other neurological disorders, such as migraine, neurosarcoidosis, schizophrenia, obstructive sleep apnea-hypopnea syndrome (OSAHS), and bipolar disorder.