Correspondence
Myelinated retinal nerve fibre, myopia, and amblyopia syndrome
In 1856, Virchow first described myelinated retinal nerve fibres (MNFs) as “chalk-white spots” around the optic disk.1 The prevalence of MNFs is about 1% based on the autopsy study.2 The relationship among MNFs, myopia, and amblyopia is complex, and the visual prognosis is variable.3Ischemic central retinal vein occlusion in a 14-year-old female
We report a case of central retinal vein occlusion (CRVO) in a 14-year-old healthy female, who initially presented with an inferonasal visual field defect and vision loss OS. The initial serologic tests were only positive for Bartonella henselae. The subsequent repeat blood work for hypercoagulability was positive for factor V Leiden. She was treated with oral azithromycin, a series of ranibizumab, and panretinal photocoagulation.Spectral-domain optical coherence tomography in mitochondrial encephalopathy, lactic acidosis, and strokelike episodes
The point mutation in mitochondrial DNA (mtDNA) 3243A→G is associated with many clinical disorders such as MELAS (mitochondrial encephalomyopathy with lactic acidosis and stroke like episodes) and MIDD (maternally inherited diabetes and deafness).1 MELAS is characterized by strokelike episodes with headache, episodic nausea and vomiting, and lactic acidosis. Other findings include renal failure, neurosensory hearing loss, diabetes mellitus, and short stature.1 Ocular findings include pigmentary retinopathy, retinal pigment epithelial (RPE) atrophy, posterior subcapsular cataract, external ophthalmoplegia, and ptosis.
