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The main symptom is loss of vision, with colors appearing subtly washed out in the affected eye. A pale disc is characteristic of long-standing optic neuropathy. In many cases, only one eye is affected and a person may not be aware of the loss of color vision until the examiner asks them to cover the healthy eye.
Non-arteritic anterior ischemic optic neuropathy (NAION) is a medical condition characterized by loss of vision caused by damage to the optic nerve as a result of ischemia, or insufficient blood supply. The key symptom of NAION is optic disc swelling, which typically resolves within 2 months, but often leads to optic atrophy. The likelihood of ...
[citation needed] Reaction to flash blindness can be discomforting and disorienting, but the retina itself has no pain receptors, [8] unlike the cornea. However, psychological pain could potentially occur in response to loss of vision. This can cause amplified stress levels, but such effects usually fade over time.
Stress can be understood as the body’s response to big life events and perceived threats or danger. There are various types of stress, a wide range of symptoms, and numerous resulting impacts on ...
He explained that: “This vision loss can range from mild to severe. The condition can progress quickly, with most of the vision loss occurring within days to weeks of the onset of symptoms.”
Nyctalopia; impaired night vision. Symptoms are not consistent with typical migraine aura. Symptoms are not better explained by another disorder (ophthalmological, drug abuse). Normal ophthalmology tests (best-corrected visual acuity, dilated fundus examination, visual field, and electroretinogram); not caused by previous intake of psychotropic ...
Major symptoms are sudden loss of vision (partial or complete), sudden blurred or "foggy" vision, and; pain on movement of the affected eye. [4] [5] [2]Many patients with optic neuritis may lose some of their color vision in the affected eye (especially red), with colors appearing subtly washed out compared to the other eye.
Visual field-tubular vision Visual field-central scotoma. Lesions involving the whole optic nerve cause complete blindness on the affected side, that means damage at the right optic nerve causes complete loss of vision in the right eye. [3] Optic neuritis involving external fibers of the optic nerve causes tunnel vision. [4]
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