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Color blindness occurs when there is a problem with the granules (pigments ) that perceive color in certain neurons of the eye, called cones . These cells are found in the retina , the layer of light-sensitive lining the back of the eye tissue.
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<A HREF="http://www.informacionopticas.com/queratocono-sintomas-y-causas/"> Queratocono</A> is a progressive vision disorder by which the ordinarily spherical cornea thins together with begins to weight loss dilemma into a cone better shape , causing a change in the sunshine that is sent to the vision offering particularly distorted observe .  
<A HREF="http://www.informacionopticas.com/daltonismo-tipos-e-informacion/"> Daltonismo</A>
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If you only need a pigment , you may have difficulty distinguishing between red and green , which is the most common type of color blindness. If you go to a different pigment , you may have trouble seeing the blue and yellow colors. People with color blindness to the blue and yellow colors usually have problems identify reds and greens .
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The most severe form of color blindness is achromatopsia . The person with this rare condition can not see any color, so all you see in shades of gray. Color blindness is often associated with lazy eye , nystagmus (small , jerky eye movements ), severe photosensitivity and extremely poor vision.
 
  
Most color blindness is due to a genetic problem (see: sex-linked recessive gene ) . Very few women are color-blind and about 1 in 10 men suffer from some form of color blindness.
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It actually can happen to just one or even either pupils and even generally is starting at some stage in kids until age 20 .  
  
The drug hydroxychloroquine (Plaquenil ) , used to treat rheumatoid arthritis and other diseases can also cause blindness.
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Keratoconus Marks
  
symptoms
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For the reason that the cornea will become more irregular in sort , a slow myopia transpires uneven astigmatism additional complications producing a distorted and even blurred imaginative and prescient vision . It can also appear gaze together with lighting allergy .
Symptoms vary from person to person , but may include:
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[url=http://www.informacionopticas.com/daltonismo-tipos-e-informacion/]Daltonismo[/url]
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Generally , sufferers expertise transforms in their graduation ceremony whenever they check out your current eyes care specialized .
Trouble seeing colors and the brightness in the usual way .
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Inability to tell the difference between shades of the same color or similar colors.
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What causes [url=http://www.informacionopticas.com/queratocono-sintomas-y-causas/]queratocono[/url] ?
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Modern groundwork implies that the deteriorating of the corneal tissues that produces keratoconus could very well be as a consequence of an changes of enzymes within the cornea generally there . This make changes to creates the cornea more prone to oxidative hurt from elements known as free-radicals , contributing to it to deteriorate as well as the anus advanced .

Revision as of 08:00, 17 January 2014

<A HREF="http://www.informacionopticas.com/queratocono-sintomas-y-causas/&quot;> Queratocono</A> is a progressive vision disorder by which the ordinarily spherical cornea thins together with begins to weight loss dilemma into a cone better shape , causing a change in the sunshine that is sent to the vision offering particularly distorted observe .


It actually can happen to just one or even either pupils and even generally is starting at some stage in kids until age 20 .

Keratoconus Marks

For the reason that the cornea will become more irregular in sort , a slow myopia transpires uneven astigmatism additional complications producing a distorted and even blurred imaginative and prescient vision . It can also appear gaze together with lighting allergy .

Generally , sufferers expertise transforms in their graduation ceremony whenever they check out your current eyes care specialized .

What causes [url=http://www.informacionopticas.com/queratocono-sintomas-y-causas/]queratocono[/url] ? Modern groundwork implies that the deteriorating of the corneal tissues that produces keratoconus could very well be as a consequence of an changes of enzymes within the cornea generally there . This make changes to creates the cornea more prone to oxidative hurt from elements known as free-radicals , contributing to it to deteriorate as well as the anus advanced .

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