Fifteen acute retrobulbar optic neuritis associated with COVID-19: A case report and review of literature

Table 1 Basic features

Sex as M/F	Age in yr, M(P25, P75)	Time relation between fever and ARON in d, M(P25, P75)	Comorbidities	Unilateral/bilateral
6/9	27(18, 39)	4(2, 6)	None	8/7

M: Male; F: Female.

Table 2 Summary of the ocular examination results for all patients

Vision	Color defect	IOP	Oculomotor pain (+)/(-)	RAPD (+)/(-)	Orbit, eyelid, lacrimal system	Conjunctiva, corneal, anterior chamber, iris	Lens, vitreous	Retina, optic nerve papilla
CF (10)/HM (5)	Achromatism in red and green (6)/indistinguishable in red and green (9)	Normal	10/5	15/0	Normal	Normal	Normal	Normal

CF: Counting finger; HM: Hand moving; IOP: Intraocular pressure; RAPD: Relative afferent pupillary defect.

Table 3 Summary of the blood test results for all patients

C-reactive protein (+)/(-)	Procalcitonin (+)/(-)	D-dimer (+)/(-)	Lactate dehydrogenase (+)/(-)	ESR (+)/(-)	MOG (+)/(-)	AQP-4 (+)/(-)	MBP (+)/(-)
0/15	0/15	0/15	0/15	3/12	0/15	1/14	0/15

AQP-4: Aquaporin 4 antibody; ESR: Erythrocyte sedimentation rate; MBP: Myelin basic protein; MOG: Myelin oligodendrocyte glycoprotein.