Currently it is estimated that globally over 100 million people who wear contact lenses. These items are very popular and the technology is getting better, which makes them even more desirable.
Why do people use contact lenses?
There are people who wear contact lenses instead of glasses for cosmetic reasons. They prefer, like contact lenses with glasses. Another reason that people are determined to make the contact lenses. There are a number of decorative contact lenses that can change the appearance of the eye. And there are those who appreciate their convenience. You can not play some sports with glasses, with devices that are not compatible with glasses, etc. It is not that the class of persons who are required to wear contact lenses for therapeutic reasons. Where appropriate, the objective is not questioned. The lens can be a bandage on the healing of various diseases or injuries to the cornea and is a luxury that heals. There is also a combination of these two reasons - the stained glass with the power of this if you like to correct people.
The primary objective is to develop glass. After that, new types of gas-permeable, like that of Plexiglas and, but now the soft contact lens is made, most appreciated. The modern materials are silicone hydrogel or other plastic polymers as etalficon A galyficon AA Senofilcon (in preparation) will be used by Acuvue contact lenses. The gas-permeable contact lenses are recommended for people with dry eyes since these lenses do not evaporate the water, which can not hold during use.
If you want to wear contact lenses, you must advance to an ophthalmologist, whatever your decision. Your doctor will decide what type of contact lenses, the eye is more appropriate. Several factors are taken into consideration when prescribing a contact lens insurance: the material (silicone hydrogel is one of the most recent discoveries in the field), take the time to use (Wear Daily, o) with prolonged use, the form ( spherical, toric or multifocal) and much more. Depending on the material, the lenses may be rigid or soft. The reader can not impervious to gas or gas-permeable, but the gas is still soft permeable. It can also be classified by the moisture content of the water in the lens.
Usage Time
One day contact lenses are safer than the risk of infection is lower than the long-term contact. This type of cleaning does not require a single use. E 'sterile. Yet, it takes money for cleaning or storage solutions. Furthermore, the type of extended wear lenses allow people simply), the lenses for a long time, contacts which can provide oxygen (usually high oxygen permeability. Some people prefer that your welfare is clear but the risk of infection is higher than the current rate of contact lenses by stagnation of bacteria, dust and so on.
One of the most popular brands of contact lenses Acuvue the world is manufactured by Johnson & Johnson's Vistakon subsidiary of the Company. They provide the vision and contact lenses. The disposable contact lenses, what prices should be replaced every two weeks (Acuvue, Acuvue 2 Acuvue 2 Colors, Acuvue Advanced and Acuvue Oasys) or less (1-Day Acuvue). They also started the production of lenses for extended wear.
Where to buy
The quality of contact lenses is very important. Contact lenses of poor quality can damage the eye, causing irritation or damage to the eyelid or the cornea. Particular attention should be how to use the lenses, well kept and clean, because even if they are of high quality, to be paid to various risks. Therefore, contact lenses must be purchased in specialty stores, in consultation with a doctor. Places where these items are available, can be found everywhere, such as contact lenses are very popular. Another trend is the acquisition of them from a shop on-line. This method is cheaper and offers the same quality. You just need the recipe. But be careful and choose only reliable shops. Your health is at steak.
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