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Author Topic: What is the treatment for night-blindness?  (Read 6015 times)

Offline chaduthz

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What is the treatment for night-blindness?
« on: 30/09/2009 01:50:48 »
"Nyctalopia (from Greek νύκτ-, nykt- "night"; and αλαός, alaos "blindness") is a condition making it difficult or impossible to see in relatively low light. It is a symptom of several eye diseases. Night blindness may exist from birth, or be caused by injury or malnutrition (for example, a lack of vitamin A).

The most common cause of nyctalopia is retinitis pigmentosa, a disorder in which the rod cells in the retina gradually lose their ability to respond to the light. Patients suffering from this genetic condition have progressive nyctalopia and eventually their daytime vision may also be affected. In X-linked congenital stationary night blindness, from birth the rods either do not work at all, or work very little, but the condition doesn't get worse. Another cause of night blindness is a deficiency of retinol, or vitamin A, found in fish oils, liver and dairy products. In the Second World War misinformation was spread by the British to cover up the reason for their pilots' successful night time missions. Their success was, in the misinformation, attributed to improved night vision and pilots flying night missions were encouraged to eat plenty of carrots, which contain carotenoids and can be converted into retinol.[citation needed] The actual reason for their success was their use of advanced radar technologies.

The opposite problem, known as hemeralopia, is much rarer.

The outer area of the retina is made up of more rods than cones. The rod cells are the cells that enable us to see in poor illumination. This is the reason why loss of side vision often results in night blindness. Individuals suffering from night blindness not only see poorly at night, but also require some time for their eyes to adjust from brightly lit areas to dim ones. Contrast vision may also be greatly reduced.

Night blindness is much more common among men than women."


 [?]
So my question is, does anyone knows how to cure this sickness aside from taking vitamin A's? A friend of mine inherits this disease and is unable to see in the dark since birth and I was curious to know how to cure it.[/color]
« Last Edit: 21/12/2009 17:52:33 by Meera »


 

Offline Shadec

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What is the treatment for night-blindness?
« Reply #1 on: 14/04/2010 04:17:18 »
I think if its genetic, then there may not be a particularly easy way to cure it, I mean the same with other genetic 'faults', theres not really much you can do about it. If its a vitamin deficiency or toxicity, then thats different.
So, if like you say, and it IS genetic, and its a congenital problem with the rods in the eye, then sorry... not a huge amount can be done really, at least that I know of
 

Offline wabdos

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What is the treatment for night-blindness?
« Reply #2 on: 26/04/2010 09:02:04 »
i think it is not easy to cure this at all as it is the problem caused by the deficiency of vitamin in the body it would be very rare to be cured of this disease completely
 

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What is the treatment for night-blindness?
« Reply #2 on: 26/04/2010 09:02:04 »

 

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