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More and more people now realize the advantage of using contacts, thus they switch to this product and hide their old-fashioned eyeglasses inside their closets. The rising popularity of contact lens led to the invention of more comfortable and efficient versions, the most popular type of lens in eye-wear industry today is the silicon hydrogel type of lens.

Made up of silicon polymer, this type revolutionized the world of eye-wear today as it is significantly more comfortable to use (because of its substance that helps moisture the eyes) as compared to other lenses.

If you are not an avid user of this eye-wear, you might be wondering what is silicon hydrogel lens is.

Silicon hydrogel lenses are the newest type of its kind available in the market right now. It is the most permeable lens ever invented yet. Thus it allows significant amount of oxygen to pass through the lens and reach the cornea of the eyes. Oxygen helps to replenish and refresh the eyes, its holey feature keeps the eyes fresh at all times. There are versions of this type of lens that can last up to 30 days of consecutive use.

How is this silicon hydrogel different from other contacts?
Most lenses available in eye care shops today is made up of polymer. But polymer is not oxygen permeable; it only uses the water of the lens to send oxygen to the eyes. This however hardly refreshes the eyes as there is not enough oxygen reaching the cornea. There are contacts out there that have high water content, but this type can cause the eyes to dehydrate easily after long hours of using.

In the case of silicon hydrogel contact lenses, you can feel the difference the moment you wear it. Its air-penetrable form allows oxygen to pass through it easily, allowing your eyes to breath oxygen five to six times more than those ordinary contact lenses available in most eye care stores. Its holey form makes wearing the lens a lot more comfortable than its regular counterparts.

The Author is an expert in Wheelchairs and Eye Vision and has done a lot of research about it online and offline. Come visit the author latest websites on Wheelchairs For Sale and Discount Color Contacts to learn much more about the topic.

Eye Supplements - Beyond Vitamin A

The eyes are something that many people take for granted, until disease or injury start to affect them, at which point your whole life can be seriously affected. Of course, there are some things, such as accidents and injuries, that can impact your eyes and will require specialist treatment. And in some cases there is nothing that can be done about problems that affect the eyes, such as genetic problems. However, we can look after our optical health in a number of other ways, and one important factor that can help to maintain them is nutrition.

There are a number of things that can affect the health of our eyes, some of which are out of our control and others that we can try and avoid. Some things that potentially increase the risk of eye problems include age, obesity, smoking, excessive exposure to sunlight, and even gender.

Whilst some people will be more at risk than others when it comes to poor eye health, it has been proven that nutrition does play an important role in the health of our vision, and this is therefore something that should be taken into account if you're interested in preventing age related deterioration.

Studies have shown that certain foods contain antioxidants that can are particularly beneficial for our eyes. However, not everyone manages to eat as much fresh produce as they should to get these benefits. Often a busy lifestyle or other factors can affect the ability to eat a balanced diet. However, the wide range of vitamin supplements that are on the market today have made it easier for consumers to get their recommended daily allowance of vitamins and minerals, although those taking supplements should still try and eat as well as they can in order to maximize the benefits.

Some important supplements that have been identified in relation to eye health are vitamins A, C, and E. These are the antioxidant vitamins.

Vitamin A is well known for its' role in night vision, but it is also important for preventing night blindness is pregnant women, and the health of our skin, hair and mucous membranes. It is found in animal products like liver, whole eggs, and milk.

Vitamin C helps reduce the risk of developing glaucoma, macular degeneration or cataracts. Bioflavanoids are available in combination with vitamin C in some supplements, and this is because they help the body absorb it. Vitamin E also helps reduce the risk of cataracts and macular degeneration.

Other supplements that contribute to eye health include beta carotene, lutein, zinc oxide, selenium, and cupric oxide. Lutein is not as well known as some other supplements, but it is central to eye health. It is found in the retina, eye lens, and macula. People who smoke should be careful they get enough lutein, as smoking can affect its' levels.

Smokers should also be aware that some studies have found that some of those participating who took beta carotene supplements and smoked were at risk of several diseases. These were only small studies however, but care should still be taken.

Eye supplements are a convenient way to get these nutrients, and often contain herbal preparations like bilberry. However, you should remember that exceeding the recommended doses can lead to side effects, so be aware of the total amount of each nutrient you are taking from multivitamins and any other supplements. This is of particular importance with fat soluble vitamins like vitamin A, though if you are not taking high doses of any vitamins you should be alright.

About the Author

If you'd like to learn more about vitamin A, click here. Rebecca writes on dietary supplements here.

how come my fish eye lens dosent attach to my kodak easyshare z712is camera?

ok im not sure why but i know i got the right fish eye lens for my camera but why isant it attaching to my camera do i need to go out and buy an attachment for my camera or what the fish eye is a opteka 0.35x AF high definition HD2 fish eye lens just wondering why its not fitting on my camera

Does your camera have a threaded front bit on the lens?
Does your fisheye have a threaded back bit?

Are they ever going to mate?

US Latinos have high rates of developing vision loss and certain eye conditions
Latinos have higher rates of developing visual impairment, blindness, diabetic eye disease, and cataracts than non-Hispanic whites, researchers found. These are the first estimates of visual impairment and eye disease development in Latinos, the largest and fastest growing minority population in the United States.

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