Extended Wear Contact Lenses
Before purchasing extended wear contact lenses, a person is best advised to first investigate the matter including whether glasses might not be a better choice for them instead. "And the vision of the evening and the morning which was told is true: wherefore shut thou up the vision; for it shall be for many days. And I Daniel fainted, and was sick certain days; afterward I rose up, and did the king's business; and I was astonished at the vision, but none understood it." (Daniel 8:26-27). Because in fact, both contact lenses and glasses have their respective advantages and disadvantages. But, generally speaking, contacts are an option for the majority of those whose vision requires correction. And where contacts are concerned, there are different advantages specifically attached to the various types of contacts. But contacts, with the exception of the ones used for cosmetic purposes, provide the same basic benefits that glasses do. However, a significant number of people have a better vision experience when they use contacts. The reason for this is that contacts are able to correct a person's vision in a less artificial way.
First, one needs to become acquainted with the different types of contacts in general. This is in order to be able to judge whether or not extended wear contact lenses are actually the type a particular person is suited for. For instance, there are daily-wear soft lenses, which may also be disposable. Soft contacts are made of flexible plastic that is permeable to air and more comfortable than hard ones. Like their name, daily wear soft contacts must be cleaned on a daily basis but only with a particular solution recommended for that purpose. As stated, they also come as disposables that are thrown away at the end of one day. So therefore, the need to purchase and use a cleaning solution will never be neccesary in this case. Second, there are planned replacement soft contacts which are replaced according to a schedule at planned intervals.
Next, there are RGP lenses that are more permeable to oxygen because, unlike soft contacts, they contain silicone. These contacts last longer and result in a superior vision experience for the wearer. By the way, RGP's are also known as Rigid Gas Permeable contacts. In addition, there are cosmetic lenses that can change not only a person's eye color, but the appearance and texture of their eyes as well. And finally, there are extended wear contact lenses: these can be worn continuously not only throughout the night, but also for as long as a week. Incidentally, these contacts are also known as continuous wear lenses. First of all, they are constructed of extremely air permeable hydrophilic polymeric materials. And too, this type requires neither disinfection nor cleaning during their extended period of wear. As a rule, the extended period can range from a week to a month. To conclude this review, one can also choose soft extended wear contact lenses that last for as long as a week and do require a small amount of cleansing.
One of the main advantages of extended wear contact lenses is the wearer having the convenience of being free of glasses on a full time basis. To begin with, those who participate in sports, for example, greatly appreciate the freedom this type allows. In addition to practical advantages, of course there is the obvious cosmetic advantage of not having to wear eyeglasses. Generally speaking, people are happy about, for example, not needing to hunt for either glasses or contacts on the way to the restroom in the middle of the night. And these, in addition to being more permeable than regular soft ones, are advantageous for people who have relatively dry eyes because they don't dry up as much. Further, this type has a specially treated biocompatible surface. And this surface is designed to diminish the buildup of bacteria.
Plus, a build up of protein is also avoided with this kind of surface. Therefore, the wearer of extended wear contact lenses avoids eye infections caused by either bacteria or protein buildup much more easily. Please note that it is extremely important for a qualified professional such as a medical doctor or dispensing optician to be involved with the contacts' fitting. Equally important are regular check ups in order to maintain good eye health. However, one should not conclude from this that those who use this type are probably scott-free from the danger of eye infection. In fact, due to the long term nature of these contacts if, for example, they are poorly cleaned or poorly fitted then complications including eye infections do indeed occur. Therefore, these super convenient lenses are considered by some experts to actually be the riskiest type a person can wear. Again, careful research and the involvement of a qualified vision professional are highly recommended.
In summary, even if one has made a previous, unsuccessful attempt to obtain extended wear contact lenses, it is still always worth investigating at intervals because the relevant technology is constantly advancing. Consider, for example, the case of a prospective mother contemplating the need to rise often in the middle of the night to tend the newborn: the benefit of wearing contacts continuously throughout the night is an obvious one. However,it is worth mentioning that, even in times of economic crisis, an individual should always refrain from purchasing these or any other type of contacts that have a cheap price. More often than not these less expensive products lack even the proper instructions for use and care. But those products that are obtainable at a discount price are well worth considering. So whether for cosmetic, practical, or medically related reasons extended wear contact lenses are a wonderful option for many people.
Continuous Wear Contact LensesArmed with continuous wear contact lenses, many people experience some welcome and convenient benefits that eye glasses, or even other types of contacts, are unable to provide. "And they sat down to eat bread: and they lifted up their eyes and looked, and, behold, a company of Ishmeelites came from Gilead with their camels bearing spicery and balm and myrrh, going to carry it down to Egypt." (Genesis 37:25). Indeed, the advantages of using continuous wear contact lenses are significant. Imagine, for example, a person experiencing the joy of being able to wake up in the morning seeing clearly without doing a single thing to make it happen except opening their eyes: from one day to the next. Another great advantage is that an individual then has the freedom to go through the day without being encumbered by having to wear eyeglasses on their face.
By the way, in the United States, for example, contacts must be approved by the FDA, also known as the Food and Drug Administration. Although there are several different kinds of contacts, the ones that can be worn for up to a month are known as gas permeable lenses. In essence, these lenses are permeable to air because they contain hydrophilic polymeric materials. By the way, another name for them is extended wear contact lenses. Not only do they deliver a markedly improved vision level these lenses also free people from having to either disinfect or cleanse lenses. However, there are also soft extended wear contacts that, although designed to be worn for about a one week period, do need some minor cleaning.
First, one needs to become acquainted with other types of contacts in general. This is in order to be able to judge whether or not extended wear contact lenses are actually the type a particular person is suited for. For instance, there are daily soft contacts, which may also be disposable. Soft contacts are made of flexible plastic that is permeable to air and more comfortable than hard ones. Similar to the name, daily wear soft contacts must be cleaned on a daily basis only with a particular solution recommended for that purpose. As stated, they also come as disposables that are thrown away at the end of one day. And therefore, the need to purchase and use a cleaning solution will never be necessary in this case. Second, there are planned replacement soft contacts which are replaced according to a schedule at planned intervals.
Specifically, the most significant advantage of continuous wear contact lenses being permeable is that more oxygen is therefore able to get through to the wearer's cornea and assist in the fight against infection. In fact, this type of contact was not completely safe enough for widespread use when first approved and introduced, in the United States, by the FDA in 1981. According to experts, two of the key factors that contributed to the evolution of these contacts to a more wearer friendly status: the introduction of disposable contacts and the fact that wearers often practice what is known as 'flexible wear.'And 'flexible wear' means utilizing continuous wear contact lenses by normally taking them out at night, and only leaving them in now and then during a nap or while camping out in the countryside - with the comfort of knowing that there is minimal, if any, risk involved in doing so. Moreover, a person can choose to opt out of the full time period officially allowed for wear and get a new pair whenever they themselves feel the time is right. Please note that although one can decide for themselves when to shift to new contacts: if a vision professional directs a person to discard them, then it is vital that the advice is followed, and at once.
Of course, as with just about any product, there are some drawbacks to using continuous wear contact lenses. To illustrate, there is still the risk of dangerous organisms, such as bacteria and fungi, entering the eye and getting stuck underneath the contacts. Further, such organisms are in their growth element underneath the lenses where it is moist and warm. Subsequently, lens-related infections such as pink eye can result. Moreover, if left unchecked, eye infections can eventually lead to blindness. Another obvious drawback is that people who remove the contacts every day risk a decidedly lower level of complications. Naturally, the best way to avoid complications is to always follow the eye care professional's instructions regarding the contacts. And too, a person should realize that wearing their continuous wear contact lenses while swimming, for instance, raises the risk of infection. Furthermore, those who are prone to eye infections will also run a heightened risk with the use of extended contacts. And the same goes for those who are either habitual smokers or often in an environment where there is smoke of any kind. But the best way to gauge how things are going: daily self-observation. In other words, those who have chosen continuous wear contact lenses must evaluate how their eyes feel, look, and the quality of their vision ability. For example, an irritated feeling or unusual redness or not being able to see as well as usual are all excellent reasons to remove the contacts and make an eye doctors appointment.
In conclusion, for those who are able to tolerate them, continuous wear contact lenses are a great relief and aid in the course of daily living. Just as long as one stays in touch with what the doctor has recommended and monitors the efficacy and continued comfort, these contacts can greatly enhance the experience of waking up to a joyous sight.