วันอาทิตย์ที่ 17 มกราคม พ.ศ. 2553

Types of Contact Lens


Since the introduction of contact lenses years, the eye product through various changes and innovations gone to meet the needs of the consumers' requirements. 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 what specific brand and type of lenses you want. If you find difficult the task, you can also ask the doctor for his proposed trade marks and> Contact lens type.

The following are the types of contact lenses, you may, depending on your needs and preferences:

• Soft lenses - soft polymer plastic, these lenses allow oxygen through the provision of a higher level of comfort to happen gas permeable lenses. Once soft lenses also fall into this category. They are called wear daily contact lenses, because theymust be cleaned daily. Although most of the daily wear soft lenses are disposable there are those that can be worn for a whole year. Disadvantages of this type of lenses are: easy to irritate absorption of oils and lotions from the hands, eyes and even a shorter lifespan than hard lenses can

• disposable soft lenses - disposable soft contact lenses can be worn for up to two weeks. They still require daily cleaning, but they are not designed lastShe month.

• Daily wear disposable contact lenses - Contact lenses are daily disposable lenses that you use only for a day. They are discarded at the end of days. While daily disposable lenses are cheaper than the annual, expenses can add up if you buy one years worth of disposable contact lenses. With daily wear disposable lenses reduces the risk of eye infections.

• Colored Soft Lenses - Colored soft lenses are perfect foranyone looking for a fresh look. They serve the same purpose as colored contact lenses, but they do come in different colors. Some colored lenses do not have colors for aesthetic reasons. These light-filtering lenses are tinted for athletes and sports enthusiasts.

Extended-wear lenses - extended-wear lenses are contact lenses that can be worn for several weeks, usually 30 days without having to remove them. You can add it to either soft or rigid gas permeable types. They are designed for busy people who do not have time to clean their lenses have at the end of each day perfectly.

• Daily wear rigid gas permeable contact lenses - these lenses are made of plastic, not as soft or absorbent than soft contact lenses, but they allow oxygen through them. You do not tear as easily as soft lenses, but it may take a few weeks to get used to it. This type of> Lenses also require daily cleaning.

• Bifocal contact lenses - are solutions for those who are suffering from presbyopia.

• Toric contact lenses - these types of lenses used to correct astigmatism. These contact lenses are also bi-focal. And can be made of soft contact lenses or gas permeable materials.

• Orthokeratology lenses - these lenses are for the improvement of the vision problems are causedthe shape of the cornea. These lenses when worn at night to adjust the shape of the cornea so that each food vision the next day, up to 12 hours.



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