Apical idiopathic orbital inflammatory disease presenting with disc edema - A case report

Idiopathic orbital inflammatory disease (IOID) is an inflammatory pathology of the orbital contents like muscles, lacrimal glands, and periorbital fat. This report presents a case of a 24-year-old female with axial proptosis, defective vision, and lid edema in the left eye. Her best-corrected visual acuity (BCVA) was 6/36 N8 with grade 1 relative afferent pupillary defect (RAPD) and impaired color vision in the left eye. Magnetic resonance imaging (MRI) of the left orbit showed infiltration of the retro-orbital fat with thickening of the optic nerve sheath. She was diagnosed with apical IOID with optic perineuritis and was treated successfully with intravenous and oral steroids.