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Argyll Robertson pupils (AR pupils) are bilateral small pupils that reduce in size on a near object (i.e., they accommodate), but do not constrict when exposed to bright light (i.e., they do not react). They are a highly specific sign of neurosyphilis; however, Argyll Robertson pupils may also be a sign of diabetic neuropathy.
Parinaud's syndrome is a cluster of abnormalities of eye movement and pupil dysfunction, characterized by: Paralysis of upwards gaze: Downward gaze is usually preserved. This vertical palsy is supranuclear, so doll's head maneuver should elevate the eyes, but eventually all upward gaze mechanisms fail. In the extreme form, conjugate down gaze ...
Long-term systemic Immunosuppressive therapy is the main treatment of cancer-associated retinopathy. [5] It can be treated with a combination of chemotherapy and immunosuppression . [ 2 ] Although tumor removal and cancer regression may result in a decrease in circulating autoantibodies, this does not influence CAR progression.
There are several causes of toxic optic neuropathy. [1] Among these are: ingestion of methanol (wood alcohol), ethylene glycol (automotive antifreeze), disulfiram (used to treat chronic alcoholism), halogenated hydroquinolones (amebicidal medications), ethambutol and isoniazid (tuberculosis treatment), and antibiotics such as linezolid and chloramphenicol as well as chloroquine and the related ...
Currently there is no treatment for this condition, but, it is usually self limiting. [1] Systemic administration of corticosteroids may be advised. [2] Even if the disease is resolved, the enlarged blind spot usually does not return to normal. [5]
Treatment consists of three phases of immunotherapy: 1. Acute phase: IV steroids (methylprednisolone 1 mg/kg) for 3–5 days or plasmapheresis are given to restore visual function. [3] 2. Intermediate phase: Oral steroids (typically prednisone 1 mg/kg) with taper are given to stabilize vision. [3] 3.
Parinaud's oculoglandular syndrome (POS) is a medical condition characterized by a specific set of symptoms affecting the eye and nearby lymph nodes.Named after the French ophthalmologist Henri Parinaud, it should not be confused with the neurological syndrome caused by a lesion in the midbrain which is also known as Parinaud's syndrome.
These include general surgical procedures, cataract surgery, hemorrhagic shock, certain medications, and optic disc drusen. The exact mechanism of optic nerve ischemia in these cases remains unclear, but contributing factors may include hypotension , anemia , hypoxia , and changes in the autoregulation of optic nerve arterial blood flow.