martes, 19 de abril de 2016

hyperferritinemia-cataract syndrome - Genetics Home Reference & New on the MedlinePlus Cataract page

hyperferritinemia-cataract syndrome - Genetics Home Reference

Genetics Home Reference, Your Guide to Understanding Genetic Conditions

hyperferritinemia-cataract syndrome

Hyperferritinemia-cataract syndrome is a disorder characterized by an excess of an iron storage protein called ferritin in the blood (hyperferritinemia) and tissues of the body. A buildup of this protein begins early in life, leading to clouding of the lenses of the eyes (cataracts). In affected individuals, cataracts usually develop in infancy, rather than after age 60 as typically occurs in the general population. Cataracts that are not removed surgically cause progressive dimming and blurriness of vision because the clouded lenses reduce and distort incoming light.
Although the hyperferritinemia in this disorder does not usually cause any health problems other than cataracts, the elevated ferritin levels in the blood can be mistaken for a sign of certain liver disorders. These conditions result in excess iron in the body and may be treated by blood-drawing. However, individuals with hyperferritinemia-cataract syndrome do not have an excess of iron, and with repeated blood draws will develop reduced iron levels leading to a low number of red blood cells (anemia). Therefore, correct diagnosis of hyperferritinemia-cataract syndrome is important to avoid unnecessary treatments or invasive test procedures such as liver biopsies.

New on the MedlinePlus Cataract page:
04/13/2016 02:39 PM EDT

Source: National Library of Medicine - NIH
04/13/2016 02:39 PM EDT

Source: National Library of Medicine - NIH
04/13/2016 02:39 PM EDT

Source: National Library of Medicine - NIH
02/19/2016 03:32 PM EST

Source: National Library of Medicine - NIH

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Photograph of a cataract

National Institutes of Health

The primary NIH organization for research on Cataract is the National Eye Institute



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A cataract is a clouding of the lens in your eye. It affects your vision. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surgery.
A cataract can occur in either or both eyes. It cannot spread from one eye to the other. Common symptoms are
  • Blurry vision
  • Colors that seem faded
  • Glare - headlights, lamps or sunlight may seem too bright. You may also see a halo around lights.
  • Not being able to see well at night
  • Double vision
  • Frequent prescription changes in your eye wear
Cataracts usually develop slowly. New glasses, brighter lighting, anti-glare sunglasses or magnifying lenses can help at first. Surgery is also an option. It involves removing the cloudy lens and replacing it with an artificial lens. Wearing sunglasses and a hat with a brim to block ultraviolet sunlight may help to delay cataracts.
NIH: National Eye Institute

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