subject: Types of Contact lenses [print this page] Types of Contact lenses Types of Contact lenses
Thanks to the invention of contact lenses, people with eye problems enable to have a clear and crisp vision without influencing their appearance since they are invisible. There are a wide variety of contact lenses available on the market, here we will illustrate the types of contact lens to help you select the right contact lens.
Soft contact lenses are made from the material of combination of soft polymer-plastic with certain percentage of water, which can enable oxygen to pass through the contact lens and offer people with comforts. For first-time users, Soft contact lenses are more comfortable than rigid gas permeable contact lenses at the first insertion of the contact lens into the eye.
Compared with Soft contact lenses, rigid gas permeable contact lenses are more rigid and in result more durable. This kind of contact lens is made of silicone polymers, which allows oxygen to circulate to the cornea of the eye. In addition, rigid gas permeable contact lenses can maintain their shape and provide people who needs vision corrections a clearer and crisper vision.
Bifocal contact lenses are specially designed for people with presbyopia, which is the eye problem with the aging people. There are distance prescription and near prescription in one bifocal contact lens available. Users can also choose reading glasses over distance contact lenses, which will enable them to have an excellent distance and near vision.
Toric contact lenses are designed for people with astigmatism. This lens is made from the same material as other contact lenses and users can have an option from soft or rigid gas permeable forms. More important, toric contact lens has two powers for astigmatism and nearsightedness or farsightedness.
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