Efficacy of High-Dose Steroid Therapy on Bilateral Total Visual Loss in a Patient with Mitochondrial Encephalomyopathy, Lactic Acidosis, and Stroke-Like Episodes (MELAS)

Mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS) is a multi-system disorder mostly caused by mutations in mitochondrial DNA [1]. The pathogenic variant m.3243A>G accounts for more than 80% of cases of MELAS syndrome. The clinical manifestations of MELAS are highly diverse and include seizures, dementia, stroke-like episodes, migraines, depression, sensorineural hearing loss, muscle weakness, cardiomyopathy