When it comes to fitting your contact lenses, your optometrist will measure the curvature of your eyes and other factors that will affect how your lenses will fit in your eyes. Some people are more prone to dryness in their eyes than others, meaning that the contacts you are prescribed shouldn t aggravate the dryness. Contact lenses are a great choice for those who have active lifestyles, such as athletes. They won t fall off like glasses when you run, nor do they hang off your face or fog up. They also offer you a full field of vision as well, which is great for sports. The lens and focus is the same as glass, meaning that you will get the same vision from contacts as you would with a pair of glasses. Daily wear contact lenses will last you a lot longer than the disposable lenses, although they will need to be disinfected and cleaned on a regular basis. As long as you clean and disinfect them on a regular basis, they will last you for quite a while. Without the supervision of a doctor, may doctors don t advise the use of non prescription contact lenses. 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. There are many benefits to these contact lenses, which we will go over. Extended wear contact lenses are convenient, possibly even more so than the other types of contacts. With most types of extended wear lenses, all you have to do is keep them clean, put them in, then go about your normal day. You don t need to clean them near as often as other types of soft contact lenses. Once the contact is out, blink a few times to clear your eyes. If it doesn t want to come out, put some drops in your eye to moisten it up, then try again. Contact lenses are a great innovation to vision correction, and they are easier to use than most people may think. Once you have worn contacts for a few days or a few weeks, you ll find that it becomes second nature to put them in and take them out.