Although they are relatively new, they are specifically made for those who work or live in dry environments. These contacts contain a special agent for re-wetting purposes, which enables the contact lens to remain moist, even if your eyes aren t producing enough tears. They are daily wear contacts, and should be soaked in solution at night and replaced every two weeks or so. Materials Contacts can be separated or best determined by their material. Contacts are divided into two main groups - soft and rigid (hard). Soft lenses are gas permeable to a certain extent, being further categorized by the amount of water they contain. Soft contacts can have either a low, which is less than 50 percent moisture, or a high moisture content, which is more than 50 percent. They are easy to put in your eyes, and most people don t even notice that they are wearing any contact lenses at all. Even though some people may experience discomfort with them, the majority of those who wear them find them to be very comfortable. When compared to other types of contact lenses, extended wear lenses are very safe. Even though you may have got in some practice with your doctor during your fitting exam, you ll find things to be totally different once you step in front of your mirror at home and try to do it by yourself. The first thing you ll notice is that it can be tricky to put your contacts in. If you are putting them in for the first time, it can be a little tricky getting them in your eye. It can cause you serious trouble, such as an infection or even scratch your cornea. The easiest way to prevent this is to examine your contacts before you wear them. Before you put your contacts in your eyes, simply let them rest on your index finger and look them over. Once you have inspected that side, simply put the in the palm of your hand and give them a thorough inspection. He or she can also tell you which contacts are best for your budget as well. These days, there are several contact lenses to choose from. You have many different manufacturers as well, offering many different types, colors, and styles. Not all are suitable for you though, as no 2 eyes are the same. When you get fitted for your contact lenses, your optician will be able to help you make that decision.