choroideremia in A Sentence

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The first symptom of Choroideremia is usually night blindness, which begins during childhood or adolescence;

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Choroideremia is an extremely rare genetic condition that causes sufferers to slowly lose their vision.

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Sufferers of Choroideremia find their vision slowly dimming over a period of years, and eventually their peripheral vision begins to disappear.

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Choroideremia is rare, affecting only one person out of every 50,000 to 100,000, but it is believed to be the cause of about 4 percent of all cases of blindness.

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Researchers in the UK have conducted studies of Choroideremia sufferers in which healthy versions of the mutated gene were injected underneaththe parts of the retina that had not yet died.

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As the loss of peripheral vision progresses, the Choroideremia sufferer will find that they have tunnel vision(i.e., they are only able to see objects in the center of their field of vision).

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The child who is affected by Choroideremia will begin to lose the ability to see well at night or in dim indoor lighting, becoming unable to distinguish objects that others can easily see.

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