Noblewi Health Tips and Advice

Posts Tagged ‘oxygen’

Now-a-days contact lenses are in trend. You have also been following the same trend. You might be using such kind of eye wears for years, but a same trend should not be followed for a longer time period. Fashion changes with the time. You would be using a reputed brand for years, but by using the same product would really hinder you from using advanced features and innovative qualities. With the growing demand, every optical company is in a bid on improving contact lens. Now-a-days, many companies have come up with such kind of eye wears, which can be worn all day long without any kind of danger or discomfort.

Usually contact lenses have a limited time period i.e. some can survive till 8 hours on eyes and some can be worn for 16 hours. But once the time limit is crossed, the person starts feeling irritation and itching in his eyes and he is then forced to remove them from his eyes. But now-a-days, contact lensis specially designed in order to withstand long hours. There are various types of eye wears available in the market such as the monthly wear type. The life span of such kind of contact lens is only for 30 days. The lenses were worn only for 8 to 10 hours earlier because these used to block the flow of oxygen to the eyes. If one intends to wear them even after the time period then he would experience itching and irritation in one’s eyes.

The buildup of intraocular fluid on contact lenses is a possible side effect to the eyes. Lenses with such deposits are uncomfortable to wear. Users of these lenses are at risk of an eye infection. Soft contact lenses are prone to developing deposits of intraocular fluid more than hard contact lenses.

Such problems as swelling of the eyes and vision haziness that are associated with the cornea, off and on result from the use of contact lens. Lenses barricade the flow of oxygen to the corneas resulting in a condition called hypoxia. Users can suffer scrapes and scratches from lenses to their corneas. Bacterial Keratitis is a corneal infection that can result from the all time use of both soft and hard contact lenses.

Persons using lenses most of the time may suffer from inflammation of the eyelids. In some cases, inflammatory bumps appear under the eyelids. They are small but painful. Persons affected with eyelid inflammation have a painful experience of wearing contact lenses.

Most of people tend to choose wearing contact lenses rather than wearing glasses. It is because contact lenses are easy to use and they can add good appearance for those who are wearing these lenses. Besides, if wearing glasses can sometime limit your activity, using contact lenses will help you to not get any problems in doing your activity.

When you are wearing contact lenses, you have to keep them clean because it is very important for your vision and health. If you are wearing contact lenses that have not been cleaned properly, it can lead to get eye infection, corneal oxygen deficiency, pinkeye, or any other ocular disorders. Contact lens cleaning should be regularly performed with the proper lens solution for keeping tour eyes to be safe and comfortable.

Before you are going to clean your contact lenses, you have to make some preparations. You need to make sure that your hands are certainly clean. Since hands can easily collect bacteria, it is possible when you take the contact out, the bacteria can get into your eyes. So, you have to wash your hand carefully.

From the first part, we know that wearing colorful contact lens will cause eye inflammation easily, especially the cornea. Because the lens contact the cornea, that is the main reason why that kind of lens called contact lens. Well, for this reason, the lens brings about some problems at the same time.

As an old saying goes, every coin has two sides. The colorful contact lens brings about both beauty and some annoying hurts to eyes. If the cornea is damaged, even a little, there will be infection or ulcer. The damage makes eyes’ immunity decreased and therefore eyes are inclined to be infected by bacteria outside, the contact lens or the liquid medicine for washing the lens. The symptoms are more tears, blurred horizon, uncomfortable feelings, red eyeballs, being afraid of light, etc. In the worst condition, some white spots will form at the cornea and affect the eyesight. To absorb more oxygen, the blood vessels of the cornea will grow abnormally in the situation being short of oxygen for a long period, which are possible to cause blindness.

It is the dry winter now, a hard time for our body. Also the winter is a time for eye diseases. Together with great temperature changes in and out of room, many myopia people with contact lens feel their eye uncomfortable. It is the unavoidable phenomenon in the dry and cold weather.

Of course, it is the time for myopia people paying more attention to their delicate eyes. If there are not enough care, eyes will suffer a lot, indeed. Then some other problems will happen later. Especially for people wearing contact lens, some measures are needed to ease the dry eyes, definitely.

For the health of eyes, choose the right contact lens and wear them properly. From optimist’s opinions, it is better to choose the contact lens that can changed regularly in winter. Moreover, for the time, the shorter, the safer. Then is the capacity of conducting oxygen. The environment with dry air, together with air-conditioning and being in front of computer all day long, requires a pair of contact lens more comfortable for eyes. By the way, pay attention to the way of wearing contact lens. Change them when they are expected to be. Examination in this period becomes more essential, to some degree. Go to the doctor’s for some eye examination is a must. At the same time, check the condition of eyes by yourself every morning after getting up. If the eyes look red, don’t wear contact lens any more. If there are uncomfortable feeling or a blurred horizon, some problems has happened already and do pay more attention to eyes.

As the myopia people, are your eyes still well? Do you wear a pair of contact lens instead of the glasses daily? If you do, can you get along well with them? Maybe these are the series of questions for more and more people with eye problems.

Eyes are suffering a lot in modern time and the eyesight is decreasing together. To have a clear, not blurred horizon, more attention should be paid to eyes and the contact lens. To keep eyes healthy, you should take care of them as patiently as you can. Of course, it is a long process to protect the delicate eyes.

Since wearing contact lens becoming a fashion in daily, colorful contact lens are really in the day. For the appearance with more charming, more and more people, especially the youth, choose to wear a pair of contact lens instead of the glasses. But they usually ignore an important problem whether colorful contact lens safe or not.

In fact, wearing colorful contact lens harms eyes’ health greatly, indeed. Now, most of colorful lens are made from plain ones adding with some colors. Looking from the surface, colorful lens are similar to plain ones except with various brilliant colors. The truth is not just like this. The colors block some tiny holes designed for touching oxygen, which results in the situation that eyes are short of oxygen in turn. Moreover, cornea, different from other parts of the body, has no blood vessels and mainly depends on absorbing oxygen in the air to complete the metabolism and keep normal functions. The colorful contact lens cause eyes separated from the air. Without enough breath, eyes will be in bad conditions. For a long time, there will be eye diseases, like cornea inflammations. If the quality of colorful lens is not good enough, the colorful materials may leak out and eyes are in danger all the time.

Since the introduction of contact lenses years ago, the eye product has gone through various changes and innovations to meet the needs of the consumers. There are now more than ten types of contact lenses each with its own characteristics. You can get a prescription from an eye doctor and decide on your own which specific brand and type of lenses you want. If you find the task difficult, you can also ask the doctor for his suggested brands and contact lens type. The following are the types of contact lenses you can use depending on your needs and preferences:

• Daily wear soft lenses – made of soft polymer plastic, these contact lenses allow oxygen to pass through providing a higher level of comfort than rigid gas permeable lenses. Disposable soft lenses fall also under this category. They are called daily wear contact lenses because they require daily cleaning. Although most daily wear soft lenses are disposable there are also those that can be worn for one whole year. Disadvantages of these types of lenses include: easy absorption of oils and lotions from your hand which can irritate your eyes and also less durability than hard lenses

This year (i.e., 2008) will be the 500th anniversary of the original conception of the contact lens. Its present form is the result of centuries of imaginative thinking, scientific reasoning and technological advances.

In 1508 Leonardo da Vinci became the first person to conceive of a contact lens. He did not propose this as a way of correcting vision, but as a way of understanding the manner by which the eye is able to preserve the visual clarity of an object as the object moves closer or further within the field of view. Leonardo da Vinci’s remarkable brainchild was not feasible at the time because of technological limitations.

The next development was a hypothetical method put forth by astronomer Sir John Herschel in 1827 for grinding and shaping them to match the shape of the surface of an eye.

As part of this methodology, Sir John Herschel suggested that a mold of the eye be taken in order to guarantee that their shape be a precise fit to the shape of the eye. Nonetheless, the technological ability to create a mold of the eye was not present during the first half of the 19th century.

Contact lenses are extremely popular world over as fashion statements and to improve eye sight. The lens when wearing a contact lens is placed right over the cornea. The cornea is defined as the clear front portion of the eye where light rays are bent and focusing occurs. The cornea has no blood supply and derives oxygen directly from the air itself.

According to ophthalmologists and other doctors who specialize in diseases of the eyes, those who wear contact lenses must protect the cornea from problems like the abnormal growth of blood vessels and irritations caused by lack of oxygen and chemicals.

Contact lens wearers must be aware of safety procedures and be sure to observe them:

1. Avoid the temptation to wear colored contact lenses. Studies have shown that colored lenses worn in the eyes reduce the amount of oxygen that reaches the cornea. The FDA has reported that decorative colored contact lenses can cause: conjunctivitis, corneal edema, allergic reactions, corneal abrasions, reduction in vision, sensitivity such as inability to contrast and so on. Details are at: http://www.fda.gov/bbs/topics/NEWS/2003/NEW00955.html.