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Scintillating scotoma is a common visual aura that was first described by 19th-century physician Hubert Airy (1838–1903). Originating from the brain, it may precede a migraine headache, but can also occur acephalgically (without headache), also known as visual migraine or migraine aura. [4]
Symptoms. Loss of vision. Diagnostic method. Eye examination. Functional visual loss (FVL) also known as Functional vision loss or Nonorganic visual loss (NOVL) is a reduction in visual acuity or loss of visual field that has no physiological or organic basis.
Denial of visual loss (Anton–Babinski syndrome) Visual hallucinations; Macular sparing, in which vision in the fovea is spared from the blindness. Causes. The most common cause of cortical blindness is ischemia (oxygen deprivation) to the occipital lobes caused by blockage to one or both of the posterior cerebral arteries.
Macular degeneration, also known as age-related macular degeneration ( AMD or ARMD ), is a medical condition which may result in blurred or no vision in the center of the visual field. [1] Early on there are often no symptoms. [1]
Causes. Retinal migraine is caused by the blood vessels (that leads to the eye) suddenly narrowing (constricting), reducing blood flow to the eye, which causes aura in vision. It may be triggered by: Stress; Smoking; High blood pressure; Oral contraceptive pill; Exercise; Hay fever; Bending over; High altitude; Dehydration; Low blood sugar ...
Corneal topography. Differential diagnosis. Keratoconus. Treatment. Vision correction ( eyeglasses or contact lenses) Frequency. Very rare. Pellucid marginal degeneration ( PMD) is a degenerative corneal condition, often confused with keratoconus. It typically presents with painless vision loss affecting both eyes.
Actress Judi Dench says she 'can't even see' due to macular degeneration. Here's what to know about the leading cause of vision loss for people over 50. Natalie Rahhal. May 28, 2024 at 4:16 PM...
An occurrence of central serous retinopathy of the fovea centralis imaged using optical coherence tomography. Specialty. Ophthalmology. Central serous chorioretinopathy ( CSC or CSCR ), also known as central serous retinopathy ( CSR ), is an eye disease that causes visual impairment, often temporary, usually in one eye.
Professor Cass Runyon of the College of Charleston demonstrating how her book, "Getting a Feel for Eclipses" helps make the celestial phenomenon accessible for people with vision loss. "Folks are ...
The most common initial symptoms reported are: changes in sensation in the arms, legs or face (33%), complete or partial vision loss (optic neuritis) (20%), weakness (13%), double vision (7%), unsteadiness when walking (5%), and balance problems (3%); but many rare initial symptoms have been reported such as aphasia or psychosis.
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