Neuromyelitis Optica Spectrum Disorder and Uveitis

Area of Science:

• Ophthalmology
• Neurology
• Autoimmune Diseases

Background:

• Neuromyelitis Optica Spectrum Disorder (NMOSD) is a rare autoimmune disease targeting the central nervous system.
• NMOSD is characterized by demyelination, particularly affecting the optic nerves and spinal cord, leading to significant visual impairment.

Purpose of the Study:

• To investigate the occurrence and characteristics of uveitis in patients diagnosed with NMOSD.
• To determine the prevalence and clinical presentation of uveitis within the NMOSD patient cohort.

Main Methods:

• A retrospective chart review was conducted.
• Data from 572 NMOSD patients were analyzed to identify cases of uveitis.

Main Results:

• Uveitis was identified in 1% of NMOSD patients, indicating a significantly higher relative risk (6.2) compared to the general population.
• Bilateral anterior uveitis was the most common subtype. In 67% of cases, uveitis preceded the onset of NMOSD demyelination.
• The mean age of uveitis onset was 50 years, and NMOSD onset was 52 years. Patients were frequently treated with rituximab for NMOSD.

Conclusions:

• Uveitis is an uncommon but notable complication associated with NMOSD.
• Bilateral anterior uveitis is the predominant form of ocular inflammation observed in this patient population.