Optic Neuritis and Neuropathy: Symptoms, Causes, Treatments.
Helpful, trusted answers from doctors: Dr. Saran on causes of enlarged optic nerve: is usually natural. Swollen is not. Are they enlarged or swollen?
The medical term for optic nerve damage is “Optic Neuritis” (ON) and this refers to inflammation of the optic nerve. The inflammation within the nerve is typically due to damage of the protective shield around the optic nerve called “myelin”. As nerve tracts are the communication route to the brain, it is no surprise that when this pathway is damaged vision will be affected.
Papilledema is the swelling of the optic nerve as it enters the back of the eye due to raised intracranial pressure. Fluid surrounding the brain is constantly produced and reabsorbed, maintaining just enough intracranial pressure to help protect the brain if there is blunt head trauma.
The optic nerve is responsible for carrying images formed at the eye to the visual cortex where they are interpreted. There are four main types of optic nerve disorders, all of which may lead to permanent damage to the sight if not dealt with promptly. The damage caused to the eyesight of a person with problems related to the optic nerve can provide diagnostic information as to the seat of the.
In the case of optic neuritis, the optic nerve becomes swollen and its function is impaired. Inflammation and destruction of the protective myelin sheath that coats and insulates the optic nerve, plus direct damage to the nerve axons results in loss of vision, which may be temporary or permanent. Optic neuritis is frequently an indication of multiple sclerosis, a disease in which the immune.
Optic nerve head drusen (ONHD) are common and can be particularly difficult to distinguish from true optic nerve swelling in pediatric patients because the ONHD are typically buried beneath the substance of the optic nerve. Correct identification of ONHD is relevant because of the visual morbidity associated with this condition and because of the need to distinguish pseudopapilledema secondary.
Medications or substances causing Optic nerve damage. The following drugs, medications, substances or toxins are some of the possible causes of Optic nerve damage as a symptom. This list is incomplete and various other drugs or substances may cause your symptoms (see Optic nerve damage).Always advise your doctor of any medications or treatments you are using, including prescription, over-the.