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  2. Drug abuse retinopathy - Wikipedia

    en.wikipedia.org/wiki/Drug_abuse_retinopathy

    Cocaine use causes increased norepinephrine levels and the resulting sympathetic activation leads to vasospasm and hypertension, [19] both of which are risk factors to retinal blood vessel damage. Related retinal vasculature conditions include central retinal artery occlusion , [ 20 ] central retinal vein occlusion [ 21 ] and cilioretinal ...

  3. Nystagmus - Wikipedia

    en.wikipedia.org/wiki/Nystagmus

    Nystagmus as seen in a case of ocular albinism. The cause of pathological nystagmus may be congenital, idiopathic, or secondary to a pre-existing neurological disorder.It also may be induced temporarily by disorientation (such as on roller coaster rides or when a person has been spinning in circles) or by some drugs (alcohol, lidocaine, and other central nervous system depressants, inhalant ...

  4. Oculogyric crisis - Wikipedia

    en.wikipedia.org/wiki/Oculogyric_crisis

    Oculogyric crisis (OGC) is a rare sudden, paroxysmal, dystonic reaction that may manifest in response to specific drugs, particularly neuroleptics, or medical conditions, such as movement disorders. This neurological phenomenon is characterized by a sustained dystonic, conjugate , involuntary upward deviation of both eyes lasting seconds to hours.

  5. Maculopathy - Wikipedia

    en.wikipedia.org/wiki/Maculopathy

    Age-Related Macular Degeneration is a degenerative maculopathy associated with progressive sight loss. It is characterised by changes in pigmentation in the Retinal Pigment Epithelium, the appearance of drusen on the retina of the eye and choroidal neovascularization. AMD has two forms; 'dry' or atrophic/non-exudative AMD, and 'wet' or ...

  6. Macular edema - Wikipedia

    en.wikipedia.org/wiki/Macular_edema

    Macular edema occurs when fluid and protein deposits collect on or under the macula of the eye (a yellow central area of the retina) and causes it to thicken and swell . The swelling may distort a person's central vision , because the macula holds tightly packed cones that provide sharp, clear, central vision to enable a person to see detail ...

  7. Actress Judi Dench says she 'can't even see' due to macular ...

    www.aol.com/lifestyle/actress-judi-dench-says...

    In 2012, the Oscar winner shared that she’d been diagnosed with the eye condition macular degeneration, which is the most common cause of vision loss in people 50 and older, according to Johns ...

  8. Macular degeneration - Wikipedia

    en.wikipedia.org/wiki/Macular_degeneration

    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] Over time, however, some people experience a gradual worsening of vision that may affect one or both eyes. [1]

  9. Blue light emitted from smartphones and laptops accelerates ...

    www.aol.com/blue-light-emitted-smartphones...

    A new study has shown how blue light can cause macular degeneration — one of the leading causes of blindness. ... Lighter Side. Medicare. News. Science & Tech. Shopping. Sports. Weather. 24/7 Help.

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