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It typically occurs in one eye at a time (70%)
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What is the medical term meaning inflammation of the optic nerve?
Inflammation of the optic nerve is called Optic neuritis. Optic neuritis can be caused by several factors such as hereditary disorders, toxic exposure, metabolic disorders such as diabetes or autoimmune disorders such as multiple sclerosis. There is usually no visual evidence of optic neuritis. Pain upon eye movement is a clinical sign of such. Inflammation of the optic nerve is called Optic neuritis. Optic neuritis can be caused by several factors such as hereditary disorders, toxic exposure, metabolic disorders such as diabetes or autoimmune disorders such as multiple sclerosis. There is usually no visual evidence of optic neuritis. Pain upon eye movement is a clinical sign of such.
Can optic neuritis cause lazy eye?
The resulting vision loss is rapid and progressive, but only temporary
My eye doctor said my optic nerves are huge in both of my eyes is that why my pupils are so big all the time?
Optic nerves can make eye pupils be big all the time. If the eye doctor told you this then it is correct.
What does it mean when your eye sockets hurt?
It may be possible that you have Optical Neuritis which is the swelling of the optic nerve. Seeing your eye doctor is important to rule this out as Optical Neuritis can be linked to MS and other disease. If it is a one time event, don't spend much concern with it as it may be associated with a headache or eye strain.
Where does the optic nerve leave the eye?
The optic nerve exits the retina at the optic disc, otherwise known as the "blind spot".
Is there an optic nerve for each eye?
The optic nerve is in the eye (optical, Optical illusions)
Where does the optic nerve enter the eye?
The optic nerve enters the eye at the back of the eyeball through an opening called the optic disc. This area is also known as the blind spot because it lacks light-sensitive cells (rods and cones) that are present in other parts of the retina.
What is the function of the optic disk in the eye?
Optic disc:The optic disc is also called the blind spot. There are no receptors in this part of the retina. This is where all of the axons of the ganglion cells(last neurons before optic nerve) exit the retina to form the optic nerve.
What region does the optic nerve penetrates the eye?
Optic Disk
What is known as the blind spot of the eye?
This spot is where the optic nerve and blood vesicles enter the eye and it is called the "optic disc".
Optic neuritis?
DefinitionOptic neuritis is inflammation of the optic nerve. It may cause sudden, reduced vision in the affected eye.Alternative NamesRetro-orbital neuritis Causes, incidence, and risk factorsThe cause of optic neuritis is unknown.Sudden inflammation of the nerve connecting the eye and the brain (optic nerve) can injure the insulation (myelin sheath) surrounding each nerve fiber, causing the nerve to swell.Causes of the inflammation can include:Autoimmune diseases (systemic lupus erythematosus, sarcoidosis, Behcet disease, autoimmune optic neuritis)Infections (tuberculosis, syphilis, Lyme disease, meningitis, viral encephalitis, and post-infectious measles, rubella, chickenpox, herpes zoster, mumps, and Mycoplasma pneumonia or other common upper respiratory tract infections)Multiple sclerosis (most often in adults, but also in children)Toxicity from drugs such as methanol or ethambutolVitamin B-12 deficiencyRisk factors are related to the particular cause.SymptomsLoss of visionin one eye, over the course of an hour or a few hoursChanges in the way the pupil reacts to bright lightLoss of color visionPain when you move the eyeSigns and testsA complete medical examination can help rule out related diseases. Tests may include the following:Color vision testingMRI of the brain including special images of the optic nerveVisual acuity testingVisualization of the optic disc by indirect ophthalmoscopyTreatmentVision often returns to normal within 2 - 3 weeks with no treatment.Corticosteroids given through a vein (IV) may speed up recovery. Higher doses should be used cautiously, as they can have serious side effects.Further tests may be needed to determine the cause of the neuritis. The condition causing the problem can then be treated.Expectations (prognosis)People who have optic neuritis without a disease such as multiple sclerosis have a good chance of recovery.Optic neuritis caused by multiple sclerosis or other autoimmune diseases such as systemic lupus erythematosus has a poorer outlook, although vision in the affected eye may still return to normal.ComplicationsBody-wide side effects from corticosteroidsVision lossAbout 20% of patients with a first episode of optic neuritis will develop myelin sheath inflammation at other sites or will develop multiple sclerosis.Calling your health care providerCall your health care provider immediately if you have a sudden loss of vision in one eye.If you have optic neuritis, call your health care provider if:Your vision decreasesYou develop pain in the eyeYour symptoms do not improve with treatmentReferencesGermann CA, Baumann MR, Hamzavi S. Ophthalmic diagnoses in the ED: optic neuritis. Am J Emerg Med. 2007;25:834-837.Johnston MV. Demyelinating Disorders of the CNS. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 18th Ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 600.
Is the optic nerve in the eye ear or nose?
The eye.
