OPTIC NERVE CHANGES IN CHRONIC SINUSITIS PATIENTS: CORRELATION WITH DISEASE SEVERITY AND RELEVANT SINUS LOCATION

Abstract

Background: Optic neuritis is an acute inflammatory disorder of the optic nerve that is clinically 
manifested by a temporary but severe unilateral visual loss. In a typical case, impaired color 
vision, visual field defects and a relative afferent pupillary defect can also be observed in the 
affected eye. Optic neuritis may be a complication of many diseases. The most common is 
demyelination secondary to multiple sclerosis or neuromyelitis optica spectrum disorders. 
However, optic neuritis has also been reported in association with hypertension and 
hyperthyroidism, infectious diseases such as rubella, mumps, measles and mononucleosis, 
systemic neoplasia, lead, arsenic, and methanol poisoning and paranasal sinus diseases.