It is a real challenge for glasses manufactures to make lenses for sufferers of presbyopia, for such lenses are too complicated. Fortunately, there are some new contacts that can be used for theses sufferers. These lenses are called bifocal contacts. In fact, these lenses are multi-functional. They can also be used to cure common eye problems, as myopia and farsightedness, etc.
One of the greatest characteristics that can be found in these lenses is these lenses can work automatically. That means the lenses will adjust themselves to the conditions of people’s eyes while they doing something. For example, if people read something, these lenses will adjust themselves to the angle through which the retina can get correct right light. True is the distant objects. So these lenses can work no worse than those thick glasses.
The mechanism underlying the contacts is very special. There are also different parts in the lenses for corresponding problems. However, the maintenance of bifocal contact lenses is very important. So people should use some specific solutions and other caring systems for the lenses.
Sufferers of some complex eye problems, as astigmatism and presbyopia, are no longer in need of doing some brothering things as they used to be. Bifocal contact lenses can help them solve all these problems perfectly. There is still an important point people should remember that these lenses should be kept in the particular solution if they do not wear them, for the solution can get rid of any wastes on the lenses, which can lead to infection