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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.
Apathy, also referred to as indifference, is a lack of feeling, emotion, interest, or concern about something. It is a state of indifference, or the suppression of emotions such as concern , excitement , motivation , or passion .
The typical symptoms of RPON are recurrent headaches and ipsilateral paralysis of the extraocular muscles (ophthalmoplegia) that are responsible for controlling eye movements. [1] People with RPON experience different severity of pain, duration of symptoms, and frequency of attacks, which are also dependent on the treatment they received. [ 8 ]
Tolosa–Hunt syndrome is a rare disorder characterized by severe and unilateral headaches with orbital pain, along with weakness and paralysis (ophthalmoplegia) of certain eye muscles (extraocular palsies). [1] In 2004, the International Headache Society provided a definition of the diagnostic criteria which included granuloma. [2]
Focal neurological deficits may be caused by a variety of medical conditions such as head trauma, [1] tumors or stroke; or by various diseases such as meningitis or encephalitis or as a side effect of certain medications such as those used in anesthesia. [2] Neurological soft signs are a group of non-focal neurologic signs. [3]
Eye strain, also known as asthenopia (from astheno- 'loss of strength' and -opia 'relating to the eyes'), is a common eye condition that manifests through non-specific symptoms such as fatigue, pain in or around the eyes, blurred vision, headache, and occasional double vision. [1]
Cluster-like head pain may be diagnosed as secondary headache rather than cluster headache. [21] A detailed oral history aids practitioners in correct differential diagnosis, as there are no confirmatory tests for cluster headache. A headache diary can be useful in tracking when and where pain occurs, how severe it is, and how long the pain lasts.
Neuropathic pain is pain caused by a lesion or disease of the somatosensory nervous system. [2] [3] Neuropathic pain may be associated with abnormal sensations called dysesthesia or pain from normally non-painful stimuli . It may have continuous and/or episodic components. The latter resemble stabbings or electric shocks.