Research Article

Clinical Characteristics of Methanol-Induced Optic Neuropathy: Correlation between Aetiology and Clinical Findings

Table 3

Characteristics of optic nerve MRI and brain MRI.

Patient no./age range/sexOptic nerve MRIBrain MRI
Lesion signalPortionPutaminal lesion

1/60S/MT1 + CNegativeNegative
Long T2Negative

2/40S/MT1 + CRetrobulbar/orbitalN/A
Long T2Negative

3/50S/MT1 + CRetrobulbar/orbitalN/A
Long T2Retrobulbar/orbital

4/30S/MT1 + CRetrobulbar/orbital/canalIntense T2 flair
Long T2Retrobulbar/orbital/intracranial

5/50S/MT1 + CRetrobulbar/orbitalNegative
Long T2Retrobulbar/orbital/intracranial

6/40S/FT1 + CRetrobulbar/orbitalNegative
Long T2Retrobulbar/orbital

7/40S/FT1 + CNegativeT1 enhancement, intense T2
Long T2Retrobulbar/orbital/intracranial

8/40S/FT1+CRetrobulbar/orbitalNegative
Long T2Retrobulbar/orbital

M = male, F = female, N/A = not available, and T1 + C = T1 enhancement. The age ranges were used instead of the exact ages according to the anonymization standards. Central hyperintense signal in T2.