Types of Contact Lenses

Contact lens is a great invention that brings much benefit to mankind, one of which is that contact lens helps people get rid of the bond of wearing eyeglasses. If you are preparing to prescript a pair of contact lenses, it is necessary for you to know various types of contact lenses, thus you are able to choose a pair that is suit to you most.

As far as the performance is concerned, contact lens can be classified into soft lenses and hybrid types. As a matter of fact, in the last few years there were hard lenses. However they were defective in many aspects, such as frangibility and uncomfortability, so they were eliminated. Soft contact lens is easy to wear, and it is applicable to most people. One takes only several hours to get used to it. Hybrid contact lens, besides the character of softness, has gas-permeability performance, which means, with this kind of contact lens, eyes can also take breath.

In the case of application, contact lens can be divided into regular contact lens and toric contact lens, the former is for nearsighted or farsighted person, while the later is for people both suffering from nearsightedness and farsightedness and astigmatism. Toric lenses have two powers. It is with this characteristic that makes toric lenses be able to eliminate double image. If you suffer from astigmatism in only one of your eyes, the optometrist will prescribe a regular lens for one eye, and a toric lens for the other.

As for the utility use, contact lens can be broken into daily-wear disposable contacts, monthly-wear disposable contacts, quarterly-wear disposable contacts and yearly-wear disposable contact. You can choose one according to your special needs. The daily-wear disposable contacts are believed to work to minimize contamination and prevent bacterial growth and you don’t have to clean and care your contacts. Another benefit of using daily disposable lens is to reduce the irritation of your eyes by contact solution, which is especially important if you are allergic. Therefore, if you want to attach attention more to your eye health or if you have sensitive allergies, daily disposable contacts should be a wise choice. If you do not have much money, daily disposable contacts are not recommended, since they are comparatively expensive. Extended wear contacts should be more suitable which usually contain silicon hydrogel, allowing you to wear lenses for 30 days and nights. The silicone element also prevents protein build-up and irritation from waterless eyes.

In relation to the enhancement tint which not only allows you to change the color of your eyes, but also provide certain protection form radiation, contact lens can be of various colors, such as green, blue, brown and so on so forth. There are even some unique designs, which when you wear, you can be with eyes as those of a cat, a tiger or a snake. In addition, light-filtering tint is mainly designed for athletes who want to develop certain color so that they can see them better. For example, tennis players use colored lenses that make it easier to see yellow tennis balls.

These above are thought to be a relative comprehensive knowledge concerning types of contact lens. One thing also noteworthy is that you have to see a doctor to examine your eyes before prescribing a pair of either contact lenses or eyeglasses. Only in this way can you know your eye condition clearly and get contacts or glasses suitable to you most.

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