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. If you wear contacts, you should look into the Acuvue advance. You can buy them online, through your local optician, or anywhere else that sells contacts. When you wear a pair of these lenses, it is actually the color that has been coded into the contact that projects the colored image everyone sees when they look in your eyes. The color of the contact shines through, making it appear that your eyes are indeed the exact same color as your contacts. Colored contacts work the same as other types of contacts. They can be used with multipurpose solution as well, as they will get all of the protein buildup off your contacts. To use daily protein remover products, simply add your normal solution to your case, then add a drop or two of the remover to your solution and put your contacts in. There are other products you can use with your contacts, although the above are the most common and the most popular. The optician or associates working there will need to verify that your test contacts meet your standards and the requirements for your eyes, according to what the optician recommends. After you have been fitted for your contacts and found the perfect pair, you should make sure that you always go to your follow up visits. When wearing glasses, this is one problem you won t have. If your eyes start to dry out when wearing your contacts, you should put a few drops of re-wetting or saline solution in your eyes. These drops will help to moisten your eyes and give you some relief from the irritation that dryness causes. All in all, contact lenses are preferred over glasses. Once you clean them they should last you for a long time before they need to be cleaned again. One of the best attributes to extended wear contact lenses is the fact that they are very comfortable. They are easy to put in your eyes, and most people don t even notice that they are wearing any contact lenses at all.