question about cataracts

Tim035 · 14 Aug 2006, 4:51 PM

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Hey just a quick question, which people are most likely to suffer from cataracts and why?
I know which people are more likely to suffer from them such as older people, People exposed to long periods of UV light, diabetics, steroid users etc etc but im having trouble explaining the why part of the question.

pemby · 14 Aug 2006, 7:39 PM

the reason that we get cataracts is that proteins in the eyes start to clump together and start to cloud a small area of the lens and over time the clump may grow larger and make it hard to see.

Tanvir · 19 Sep 2006, 6:34 PM

The lens become clouded as enzymes in the eye do not function properly due to old age or mutation from UV radiation

georgechah1 · 6 Oct 2006, 12:34 AM

why u ask...
ALL CATARTS INVOLVE THE CLUMPING OF OXIDESED PROTEINS(CRYTALLINS) IN THE LENS.

CAUSES
1)Insufficent nutritients in the lens fibres due the increased density of the fibres. The folded protiens(crystallin) that make up the lens then become oxidised. They clump together forming the cloudiness or thickening. right. thers age related cataracts which happnes because oxidising chemicals enter the lens as the lens ages and when the proteins in teh lens become oxidised they clump together this causes cataracts.get it.
2)Radiation induces cataracts caused from indecent and long exposer of ultraviolet light and insuficent antioxidents in the diet. again this causes the protiens to get oxidised resulting in cataracts.
3)Infectious catarats is obviously caused by a pathogen i.e. rubellavirus can casue cataracts in the fetus if the disease is contractes by a pregnant women.

Dunnybrush · 26 Jul 2008, 6:24 PM

Where are you guys getting this information?

Last time i saw (just now doing an assessment) scientists couldn't didn't know why people got cataracts... They know what happens when cataracts occur (protein clumping) but they don't know why that occurs...
So far they only make assumptions as to what causes it i.e. Age, exposure to UV light e.t.c
But they haven't flat out given a reason for what causes the protein clumping

14 Aug 2006, 4:51 PM	#1 (permalink)
Tim035 Executive Member HSC: 2006 Gender: Male Join Date: Oct 2005 Posts: 629 Last Activity: Yesterday, 5:40 PM	question about cataracts You can hide this advertisement by registering. Hey just a quick question, which people are most likely to suffer from cataracts and why? I know which people are more likely to suffer from them such as older people, People exposed to long periods of UV light, diabetics, steroid users etc etc but im having trouble explaining the why part of the question.

14 Aug 2006, 7:39 PM	#2 (permalink)
pemby New Member HSC: 2006 Gender: Male Join Date: Mar 2006 Posts: 7 Last Activity: 17 Oct 2006, 1:49 PM	Re: question about cataracts the reason that we get cataracts is that proteins in the eyes start to clump together and start to cloud a small area of the lens and over time the clump may grow larger and make it hard to see.

19 Sep 2006, 6:34 PM	#3 (permalink)
Tanvir New Member HSC: 2005 Gender: Male Join Date: Feb 2005 Posts: 14 Last Activity: 8 Nov 2006, 5:25 PM	Re: question about cataracts The lens become clouded as enzymes in the eye do not function properly due to old age or mutation from UV radiation

6 Oct 2006, 12:34 AM	#4 (permalink)
georgechah1 New Member HSC: 2007 Gender: Male Join Date: Feb 2006 Posts: 20 Last Activity: 25 Jul 2007, 2:23 AM	Re: question about cataracts why u ask... ALL CATARTS INVOLVE THE CLUMPING OF OXIDESED PROTEINS(CRYTALLINS) IN THE LENS. CAUSES 1)Insufficent nutritients in the lens fibres due the increased density of the fibres. The folded protiens(crystallin) that make up the lens then become oxidised. They clump together forming the cloudiness or thickening. right. thers age related cataracts which happnes because oxidising chemicals enter the lens as the lens ages and when the proteins in teh lens become oxidised they clump together this causes cataracts.get it. 2)Radiation induces cataracts caused from indecent and long exposer of ultraviolet light and insuficent antioxidents in the diet. again this causes the protiens to get oxidised resulting in cataracts. 3)Infectious catarats is obviously caused by a pathogen i.e. rubellavirus can casue cataracts in the fetus if the disease is contractes by a pregnant women.

26 Jul 2008, 6:24 PM	#5 (permalink)
Dunnybrush New Member HSC: 2008 Gender: Male Join Date: Jun 2008 Posts: 10 Last Activity: 15 Oct 2009, 1:10 PM	Re: question about cataracts Where are you guys getting this information? Last time i saw (just now doing an assessment) scientists couldn't didn't know why people got cataracts... They know what happens when cataracts occur (protein clumping) but they don't know why that occurs... So far they only make assumptions as to what causes it i.e. Age, exposure to UV light e.t.c But they haven't flat out given a reason for what causes the protein clumping

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