We all know about contact lenses and the uses of contact lenses as a replacement of glasses or spectacles to correct vision problems or refractive errors of eye. The common refractive errors of the eye are myopia, astigmatism, hypermetropia etc. As there are several uses of contact lenses, there are also several types of contact lenses e.g. hard contact lens, soft contact lens or simply soft lens etc.
Although the main use of contact lens is correction of vision and it started for this purpose. But these days contact lenses are used for many other purposes like cosmetic use of contact lenses. For cosmetic purpose contact lenses are available in different (as you desire) colors, although the commonly used contact lenses are of faint blue color for making the contact lens more visible in the washing or cleaning solution as well as in storage solution.
Contact lens has to be used and stored with care and to overcome this storage problem disposable contact lenses are available. Soft contact lenses have several advantages in compare to hard contact lenses, although the soft contact lenses are costlier in compare to hard contact lenses. Soft contact lens is easier to use and are much more comfortable to the eye and can be worn for longer duration without much discomfort, which can be a problem with hard contact lens. Disposable soft lenses are very commonly used due to the comfort and ease to use them.
The cosmetic contact lenses are used for changing the appearance of the eye. Cosmetic contact lenses not only change the appearance according to your desire, but it can correct your vision too, if you have vision problem and serve dual purpose of correcting vision and at the same time makes you look better.
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