Ocular Manifestations After Acute Methanol Poisoning.

Authors :: Rym M
Wijden N
Héla M
Héla S
Nozha B
Cheour M
Source :: Neuro-ophthalmology (Aeolus Press) [Neuroophthalmology] 2023 May 11; Vol. 47 (4), pp. 193-198. Date of Electronic Publication: 2023 May 11 (Print Publication: 2023).
Publication Year :: 2023
Abstract: Acute methanol poisoning is first and foremost life-threatening. Otherwise, functional prognosis is mainly based on ocular impairment. In this case series we aimed to describe the ocular manifestations after acute methanol poisoning during an outbreak in Tunisia. The data from 21 patients (41 eyes) were analysed. All patients underwent a complete ophthalmological examination including visual fields, colour vision test and optical coherence tomography with evaluation of the retinal nerve fibre layer. Patients were classified into two groups. Group 1 included patients with visual symptoms and group 2 included patients with no visual symptoms. Ocular abnormalities were seen in 81.8% of patients with ocular symptoms. They included: optic neuropathy in 7 patients (63.6%); central retinal artery occlusion in 1 patient (9.1%); and central serous chorioretinopathy in 1 patient (9.1%). Mean blood methanol levels were significantly higher in patients without ocular symptoms ( p = .03).<br />Competing Interests: No potential conflict of interest was reported by the authors.<br /> (© 2023 Taylor & Francis Group, LLC.)