This post was most recently updated on November 17th, 2019
Contacts are a wonderful way to correct vision without having to wear glasses. Many patients choose contacts over other alternatives because of their adaptability and usefulness for treating many different conditions. Here are a few of the different types of contact lenses available through a prescription.
Soft, Hard, and Hybrid Contact Lenses
There are two basic categories of contact lenses. Soft contact lenses are one of the most popular as they are generally more comfortable and easier for the eye to adjust to. They are made from hydrogels that almost immediately mold to the eye. The other basic type is the hard contact lens which can provide a clearer image and can be used to treat certain conditions such as extreme astigmatism and keratoconus. A third type, called the hybrid contact lens, is a compromise between soft and hard lenses. These can be the perfect choice for some individuals, but they tend to be prescribed less due to price and fit.
Daily or Extended Wear Contact Lenses
These two main types can be separated into many different categories. Many patients choose to wear daily contact lenses which must be taken out at night and cleaned overnight before replacing. There are also extended wear contacts that are marketed to be worn continuously for a longer period of time. There are also disposable lenses that are meant to be thrown away at the end of each day. Many eye doctors recommend daily wear because daily removal and cleaning can help to prevent infections.
Scleral Contact Lenses
Other specialty lenses such as scleral contact lenses are used to treat keratoconus and other corneal irregularities. These lenses are gas permeable lenses that fit over the cornea and help to correct the shape of the cornea. They can also be used for individuals with extremely dry eyes or someone who needs a larger contact.
Cosmetic Contact Lenses
Other patients choose to wear contacts that are made for cosmetic purposes only. These lenses do not correct vision but can change the color of the wearer’s eyes or produce special effects useful for costumes. It is important to note that the patient should always acquire these special lenses with a prescription given by an optometrist. Theatrical lenses purchased without a prescription are not only illegal but extremely dangerous. However, all of these cosmetic lenses can be ordered legally and safely using a prescription.
Safe Usage
Regardless of the type of contact that a patient chooses to wear, it is important to take care of both the lenses and eyes. Daily cleaning and removal at night allows the eyes to get the oxygen that they need and prevents dust, bacteria, and other particles from becoming trapped in the eye and causing infection. Even if the contacts are worn for purely cosmetic reasons, it is necessary to follow all instructions regarding cleaning and care.
Technology has greatly expanded over the last fifty years. Contacts today are more comfortable, more effective, and safer than in previous years. These lenses can be used for everything from correcting serious vision problems to changing the color of the eyes and are available in daily wear and extended wear varieties. Contact your optometrist today to find the right fit for your eyes.