Toxic amblyopia is a serious medical condition that results from exposure to certain toxins and can lead to vision loss. Some synonyms for this condition include nutritional optic neuropathy, optic neuritis, and toxic optic neuropathy. Toxic amblyopia can also be referred to as toxic optic neuritis, which can occur due to exposure to a variety of toxins such as methanol, ethylene glycol, and carbon monoxide. Nutritional optic neuropathy can occur due to deficiencies in vitamins such as B12 and folate, leading to damage to the optic nerve. Toxic optic neuropathy can also be caused by exposure to certain medications, such as those used in chemotherapy treatments.