What Type of Contact Lenses are Right for your Eyes?
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1800CONTACTS.com” src=”http://www.awltovhc.com/ba107kpthnl69EBA87C6CAAF879″ />Contact lenses are slim discs that when positioned on top of the cornea of the eye becomes a replacement for eyeglasses. The eye conditions that are corrected by wearing contact lenses are the same as those rectified by eyeglasses and consist of Astigmatism (distorted vision), Myopia (nearsightedness), Hyperopia (far sightedness) and Presbyopia (need for bifocals).
Likewise that there are no two sets of fingerprints that are the same, there are also no two pairs of eyes that are precisely alike. For the reason there are different kinds of lenses for different types of eyes. Read below to find out which type of contact lens is right for you.
Hard Lenses
If you are looking for the lowest-cost alternative in prescription contact lenses, you may want to consider PMMA lenses. These were the first contact lenses ever developed, and though they are not the common choice among contact wearers, are still manufactured today. This type of contact lens is known as being rigid and perhaps a bit harsher on the eye. They are made of sturdier material than other types of contact lenses. These lenses are made of PMMA, a type of plastic that is extremely durable. They are not known to be the most comfortable lenses on the market, but are very durable, and easier on the budget than more comfortable options. This is not the best option for people with sensitive or irritable eyes.
Hard Lenses that Breathe
Rigid Gas-permeable contact lenses, also known as are also known as “RGPs” are a somewhat newer version of hard (rigid) lenses made of plastics as well as other materials, including silicone. A key ingredient in this type of lens - fluoropolymers allow oxygen go right through the lens, thus making it “gas-permeable.” Some of the benefits of RGP’s are that they are better at retaining their shape, thus providing a crisper vision; they keep your eyes moist, and they resist dust and debris. This type of prescription contact lens is ideal for:
Those whose eyes are overly sensitive to bacteria or are prone to infection Those who are prone to suffering from dry eyes LASIK surgery candidates People who participate in sports Users of bifocal eyeglasses and reading glasses
Soft Lenses
Soft contact lenses are made of thin plastic and water. The water component gives the lenses a soft and bendable consistency. Soft contact lenses also let oxygen through, allowing the eye to breathe. The majority of prescription contact lenses in the U.S. use soft contact lenses. Some of the reasons for this include the fact that they provide greater comfort, are easier than hard lenses to adjust to and can be worn for longer periods of time. Some of the soft lenses on the market include the following.
Extended wear lenses
Extended wear lenses are soft contact lenses made of materials that allow for use during longer periods of time. This type of prescription lens can be worn for 1-4 weeks without removal and cleaning. Though these types of lenses do allow oxygen to pass through and do tend to keep eyes moist, they are likely not the best option for those with sensitivity and irritability issues.
Disposable lenses
Disposable lenses are designed to be worn for a limited time and then discarded. This type of lens is excellent for those with sensitive or irritable eyes. Although they are generally more expensive than other types of lenses, the fact that they are replaced daily by a new pair deems them a very low infection risk.
About the Author: Clearly Contacts is an online supplier of all the popular brands of contacts and contact lenses. Offering a wide variety of lenses including Acuvue contacts, Purevision and Freshlook contacts.
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September 1st, 2008 at 1:25 pm
The majority of contact lenses sold nowadays are soft contact lenses, and many suppliers now only stock these. Hard lenses are sometimes prescribed by opticians, usually to patients suffering from severe astigmatism or irregular corneas. It is always advisable to consult your optician about which type of contact lens is most appropriate for your eyes. All popular brands of soft contact lenses are available at www.lenstore.co.uk