Transparent contact lenses
Transparent lenses are ordinary contact lenses which are manufactured from completely transparent materials. In contrast to coloured contact lenses, these lenses do not change your natural eye colour and are used for contact correction of eyesight only.
As statistics shows, there are more than 125 million people all over the world which give their preferece to trasparent contact lenses as the best way of eyesight correction. Currently, there are a lot of different classifications of transparent contact lenses. They can be divided into groups by wearing schedule, design and material from which they are made of. The most correct and complete classification divide transparent lenses into two large groups. They are:
- Hard contact lenses. They are used for eyesight correction only and in particularly difficult cases (keratoconus, compound astigmatism);
- Soft contact lenses. They are manufactured from hydrogel or silicone-hydrogel. These contact lenses are worn by 90% of users.
Transparent contact lenses are intended for correction of eyesight defects which are conditioned by such pathologies of refraction as myopia, hyperopia, astigmatism or presbyopia. Nowadays soft contact lenses are the most popular among all users of contact lenses. They also can be divided into two groups. There are contact lenses of traditional and scheduled replacement. Traditional contact lenses have long operating period (not less than 6 months) and require constant care. Many people consider that contact lenses of this type are not comfortable for everyday life (and they are absolutely right), and for this reason more and more of them give their preference to transparent contact lenses of scheduled replacement. Scheduled replacement can be realized once in three months or one/two times a month (it also depends on type of contact lenses). But it is not a secret that the most comfortable, hygienic and safe lenses are daily transparent contact lenses. These disposable products can be worn during the daytime and at night they are simply thrown out (on the next day you use new pair).
You have no need in cleaning or disinfecting these contact lenses, because protein complexes, salts and microorganisms, which are formed from lacrimal fluid, have no time to deposit on their surface and become a real danger to your eye health. Modern transparent contact lenses have high moisture content and excellent oxygen permeability, and so you are completely protected from such unpleasant symptoms as dryness, reddening and irritation of the eyes. But it is important to note that if you have sensitive eyes you probably have to use special rewetting drops. If you want to start using contact lenses you must consult with professional ophthalmologist. He will help you to make the best possible choice (taking into account your individual characteristics, your way of life and your wishes).