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. This is all about preference, and what you feel is the best for you. If you have the money to spare, you would be better off getting a pair of brand name contacts. On the other hand, if you are on a limited budget, cheap contact lenses would do you good - at least until you get the money to buy one of the better brands. The advance contact lenses from Acuvue work pretty much the same as other contacts. You need to clean them and soak them in contact solution overnight. They are good up to a month per pair, which makes them ideal for everyday use. They normally come in boxes of 6, meaning that a single pair will last you up to 3 months. Although there are quite a few differences between the two, they do have a few things in common as well. Both glasses and contacts require cleaning and careful handling. You ll need to spray your glasses and wipe them off a few times each day. Contacts need to be cleaned as well, before you put them in and soaked in solution when you aren t using them. On the flip side, there are several risks and problems associated with this procedure, besides the fact that it is very expensive. Contact lenses aren t expensive, and they are a safe alternative to vision correction. For several years, contact lenses have been an ideal way to correct your vision. They are more popular than glasses, and they won t limit what you can and can t do. Gas Permeable Contact Lenses Also known as oxygen permeable contacts, gas permeable contact lenses are a lot easier to take care of then other types of contacts - including soft contact lenses. GP (Gas Permeable) contacts are made from a combination of fluorine and silicone, meaning that they won t attract protein near as much as other types of contacts.