In order for your optician to give you a prescription for contact lenses, your cornea will need to be free of any type of problems that can prevent you from wearing them. Normally, your optician will give you a trial pair of contact lenses to try out, and then check them for fit once they have settled in your eyes. Contacts on the other hand don t weigh anything at all. When you wear contacts you don t need to worry about tightening them or worry about them constantly sliding your face - which can be very annoying. Glasses are also known to fog up frequently, and they are very distracting during any kind of sports you play. Contact Lenses Without A Prescription Even though you can get non prescription contacts, they aren t meant to correct your vision. Known as plano, the most common type of non prescription contact lenses are the opaque color contact lenses. Even though they don t require a prescription, those who want them need to consult with an optometrist first to ensure they get the right fit. The bad part is, most of us will need some type of corrective lenses, such as contact lenses or glasses and possibly even bifocals at some point in our lives as this condition gets worse. Up until recently, those who wore bifocals had very limited options when they chose their corrective lenses. Years ago, glasses that contained bifocal lenses were just about the only option available. This material is very rigid, and doesn t contain near as much water as soft contacts. With that in mind, taking care of and cleaning hard lenses is very different that cleaning and maintaining soft contact lenses. Before you purchase a pair of hard or rigid contacts, you should know how to take care of them and how to clean them. These are all great contacts, although you should check with your optician to see what he recommends. If you are just starting to wear hard contact lenses or have thought about them in the past, you ll need a 2 - 4 week break period, where you will gradually wear the contacts longer and longer with each passing day.