CONTACT LENS

If you want to wear contact lens instead of glasses, you must first see an ophthalmologist, optometrist, or depending on the state, an optician. This is the case even if you don't normally wear glasses, and just want contacts just to change your eye color. The reason is because Contact lens are medical devices that need to be properly fitted by an authorized eye care practitioner. In the United States, contacts can be legally purchased only with a valid written prescription from a credible doctor..

The eye doctor will check your eyes to make sure that it's okay for you to wear contacts; today, nearly everyone can, but there are a rare few people who actually can't. Then, he/she will determine what your prescription is and make the recommendation from there. Your Contact Lens Prescription Doctors all use the same method of shorthand to write down contact lens prescriptions, and it can look like a secret code to the untrained yes, but it's really quite simple to decipher to the trained eye. This code is used to prevent unlawful fraud. The fact of the matter is that if you wear contact lens without a prescription, you could severely damage your eyes. Just like glasses, the wrong fitting lens could be harmful, but the wrong prescription can cause life long damage.

The selection of contact lens that are currently available can best be described as wide. However, you don't have to worry about becoming overwhelmed because contact lens can be broken down into several main categories that are each based on what they're made of, how often you need to replace them and whether or not you can sleep in them. Contact lens are made of many different types of plastic, but they are divided into two main groups: soft or rigid gas permeable. Soft contacts contain a great deal of water in them and are easy to adapt to. They are also very comfortable to wear. Rigid gas permeable contact lens take longer to adapt to because they are a bit harder, but are more durable and more resistant to deposit buildup. They are generally less expensive over the life of the lens but the upfront cost is higher and they can offer some people better vision than they would have with soft contacts because for some people they see things more clearly.

The replacement schedule of a contact lens is a direct reference to how long you can safely wear it before you need to throw it away. With RGPs, you can generally replace them after several years of wear; because they're so hardy. It doesn't make sense to replace them more often than that. Soft contact lens come in a wider variety of replacement schedules because there are also those that are disposable. The kind of lens that you can sleep in is called extended wear lens, and those that you can't sleep in are called daily wear lens.

A great deal of companies these days are offering bifocal and toric lens that are available in a daily wear lens. Many lens these days also offer UV protection, but it is best to still wear sun glasses because a contact lens only protects the cornea from UV rays and not your entire eye.

Toric contact lens are made of the same material as regular lens, but they do have great advantages. Toric lens are cheaper, they help with astigmatism. These types of lens are a better fit for the eye, but they can take longer to produce because they are form fitting to each person's eye. They cost more for purchase in the beginning, but they wind up being a better deal in the end because they last longer and are easier to maintain. When you are looking for the right contact lens choice, the best thing that you can do is ask your eye doctor what choices are available to you and decide from there.