Table 1.

Aetiology of Optic Neuritis

Demylinating lesions	Multiple Sclerosis (MS) [4,8-10], Neuromyelitis optica [4,8,9], Shilder’s disease, Encephalitis periaxialis concentrica [4] (out of which MS is the most common cause [4])
Autoimmune Disease	Sarcoidosis [1,4,9], systemic lupus erythematosus (SLE) [4,9], Sjögren’s syndrome (SS), Behchet’s disease [9]
Infectious/para-infectious	Herpes zoster [9], lyme disease [1,4,9], syphilis [1,4,9,11], tuberculosis, dengue [11,13], mumps, varicella zoster [4,11], toxoplasmosis [4,9,11], measles [4,11,12], leptospirosis, chickungunya, west nile [11], adenovirus, brucellosis, coxsackievirus, cat scratch disease, β-hemolytic streptococcal infection, meningococcal infection, typhoid fever, whipple’s disease [4]
Inflammatory/post vaccination	sinusitis [1], vaccinations against tuberculosis, hepatitis B, rabies, tetanus, meningitis, anthrax, measles, rubella & influenza [12]