Contact lenses have really benefited a lot of people in recent years, and they have become much popular than ever before. However, there are a lot of things to be considered before buying them. On the whole lenses in the market can be fallen into various groups if seen from different perspectives.
Soft lenses are some of the most popular and preferred alternatives among certain wearers. These lenses can also be categorized into two major groups, namely, disposable lenses and extended eye wear. The former type can be discarded if wearers do not want to clean or disinfect these lenses. They will cause less infection and problems at the same time. Or there are also soft lenses that can be worn for very long time. If well maintained, they can offer wearers ideal vision effects. Anyway, careful maintenance is critical.
There are also some lenses that can let through more oxygen and moisture than many other lenses. Due to this characteristics, many problems caused by lack of oxygen and moisture can be avoided. However, most of these lenses are made from hard materials and some time is needed for adaptation.
In addition, there are now in the market some special contact lenses that can be slept in. That’s to say, these lenses can be deemed as a natural part of eyes. These lenses can ensure sufficient oxygen, comfort and safety.
In the past, lenses can only be used to correct certain vision problems, and some others can not be rectified, like astigmatism. And now, there are some lenses particularly designed for astigmatism.
In most cases, lenses are used for vision correction, but there are still some lenses for decoration. There are now some cosmetic lenses that can be used to enhance wearers’ personality and images. Or some of these lenses can be used to changed wearers’ eye colors and are used on particular occasions.
Anyway, contact lenses are eye wear to be directly contacted to eyes and it is needed for wearers to be careful. People should consult with their eye doctor and then get an eye prescription. Still, maintenance is critical.