A comparison between eyeglasses and contact lenses
Without the help from eye aides, many people today can not have a vivid vision of other people’s facial expressions, such as the school professor, the boss or the most important person. They can even be a little confused if it is really them. In some cases, it is only possible to be sure of their gestures and the way they communicate. It is ok to say that a lot of people are quite familiar with these conditions. Thanks to the availability of prescription eyeglasses for their vision correction. Nowadays, eyeglasses can be next to one’s bed if he or she suffers from poor vision. For a large group of people, all things can be seen only through this medium. There are many scenarios suggesting that eyeglasses are very important.
However, it is still undeniable that there are more and more individuals turning to contact lenses. Even if these two kinds of devices cater the same visual need, contact lenses are preferable due to some reasons. Some people choose contact lenses for a younger look and some others go for vanity. Free from nerdy eyeglasses, one’s face may look more pleasant or appealing to others. In addition, contact lenses can provide a wider visual field than eyeglasses. This is because contact lenses are placed exactly over the cornea. The users do not need to move their heads when they want to see something in peripheral vision. Contact lenses users are easier to get naturally clear vision.
These advantages of contact lenses have never shamed eyeglasses in general. There are many circumstances that reflect advantages of eyeglasses. For instance, many people are quite busy with their job or business and they do not have the luxury of time to prepare their contact lenses. It is widely known that contacts require much time of maintenance. In this case, using eyeglasses is relatively more convenient. It is easy to have eyeglasses handy.
Various types of contact lenses
Some people are not clear about what types of contact lenses are available on the market. One of the types is disposable contacts, which are commonly seen on television commercials and Internet ads. This article describes basic types of contact lenses. Before making a decision, contacts wearers should carefully evaluate these factors including lifestyle, budget and so on. In addition, the best, most personalized decision can be made only with a detailed discussion with an eye professional.
Soft lenses are made of flexible plastic. This material is soft and permeable that allows oxygen to pass through and reach the cornea. It is commonly known that soft lenses are easier to adapt to. Moreover, soft lenses are always more comfortable than other types and most disposable contacts belong to the soft type.
One of the widely accused disadvantages of rigid gas permeable contacts is that they are less comfortable than soft lenses. Nevertheless, RGP lenses also have good sides. They are more durable and resistant to deposits built-up. With this feature, wearers need not to worry about damaging and tearing while handling these lenses. In addition, RGP lenses are said to provide clearer, crisper vision than soft lenses.
Extended wear lenses can be worn continuously without removal for several days, which is the most significant difference between this type and daily wear lenses. Certain brands of extended wear lenses are even approved to last continuously 30 days. Some people always forget to remove their contact lenses and extended wear lenses are their best choice.
Also called replacement schedule lenses, disposable lenses can be less or more frequently replaced according to the lens type. To the extreme, daily disposable contact lenses can be worn and discarded every day. Most types of disposable contacts are intended to last a couple days and then be discarded.
Customers should look into all the benefits and drawbacks of each type of contact lenses. The final decision should be made between a customer and his eye practitioner. In general, daily disposable contact lenses are more suitable for those who are susceptible to eye infections.
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How to Properly Use Contact Lenses?
As contact lens wearers, we should pay more attention to lens maintenance. In some cases, most of us have neglected this point and have greatly damaged our eyes. In fact, good care of lenses can not only protect our eyes, but also can assure that those lenses can be worn for much longer time.
Some bacteria and organic matters might be left on our lenses if we have worn them for too long time. This has required us to put those lenses in the particular solution to get rid of the above-mentioned matters.
One mistake we often make is to wear contact lenses for very long hours. In fact, wearing lenses too long will not only damage the lenses, but also our eyes. Some of us may have worn unclearly cleaned lenses. This is very dangerous, for such lenses can lead to eye infections and vision loss.
What you should do is to use a particular cleaning solution for your lenses. Such solution can help clean and disinfect your lenses.
Make sure that your hands are clean while inserting lenses. Therefore, washing hands is essential. But the washing process should also be cautious, such as soaps are prohibited.
After washing, make sure your hands are dry. And make sure that the lenses are soaked with this solution for a particular duration. Doing all what have mentioned above can make sure that your eyes are healthy and lenses can be worn for longer time.
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UV Blocker Contact Lenses – Protecting Your Eyes
UV rays from sun light, salt in sea water and chlorine in pools are regarded as the common causes of eye stress, and daily exposure to sun’s UV rays is thought by lots of eye doctors to be the most significant eye stress.
But we live to enjoy the sunshine and enjoy swimming, and we are unavoidable to meet those problems. What should we do to protect our eyes and at the same time enjoy the world? Don’t worry! There are goggles, hats and sunglasses for preventing any harm to eyes. If you decide to go outdoors, you can take all the protective tools with you. Moreover, contact lenses with UV protection are now coming to the market, bringing great convenience and fashion.
Being different from the common contacts, the lens material of the UV blocker contacts is combined with an ultraviolet blocker, which can prevent harmful UV rays to the eyes, thus reducing the likelihood of eye stress, eye damage and cataracts. The material seems invisible by naked eyes, and can only be seen by large magnification, which means you eyes see as clearly as you do before. Nothing blocks your view. But the traditional sunglasses cannot be completely substituted by UV prevention contacts till now, and there are still large improvements on this kind of contacts.
After developing for some time, there are various kinds of lens on the market, from the top to the unknown brands. Acuvue Moist brand, manufactured by Johnson & Johnson, receives great popularity among customers, and their contacts are available either at retailer or online. You can try other reputable contacts brands too. But, one point that you should remember is before you buy the UV prevention contacts, you are recommended to have a careful check on your eyes to get the prescription and know if you are suitable for contacts.
Summer is a season full of vitality, and we are sure to enjoy the lovely season. Summer is also a season full of danger, such as strong sunshine to hurt eyes and skin. But once we have the sunglasses or the new UV prevention contacts, we do not have to worry about the potential risks of sunshine. We are free to play outdoors to enjoy the beautiful world bathed in sunshine.
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What is Intra-Ocular Contact Lenses
Most people are not strange to contact lens which is a corrective, cosmetic, or therapeutic lens usually placed on the cornea of the eye. However, do you know what the intra-ocular contact lens is. Intra-ocular contact lens is a medical jargon, and it, as its name suggests, is a lens implanted inside the eye, usually replacing the existing crystalline lens, which will be clouded over by a cataract as people age. Therefore, when people get their 40s when the natural inborn lens becomes opaque, they can remove their damaged lens by replacing a prosthetic lens placed in their eyes. This is what American elders usually do. However, the problem is that those intra-ocular contact lenses have some shortages that with the deterioration of muscles, it will be easy for them to be out of shape by a loss of nervous control or a malfunction within muscles.
The good news is that new models of intra-ocular contact lenses have come into being, which can not only be applied to help cataract patients get a clear vision of objects both close-by and in the distance, but also be used to correct eyesight problems of nearsightedness and farsightedness.
Then you may have the question how the surgery process. Usually the surgeon removes the eye’s lens with a small slit and implants a newly shaped and transparent lens to replace the pervious lens. Since the surgery is a minimal invasion into eyes, the surgeon should be highly qualified and operate extremely carefully. In normal conditions, a patient who has had such a surgery is able to recover within a week.
Anyhow, detriment is inevitable for having intra-ocular contact lens. Thus those who want to get rid of eyeglasses would more preferable to a LASIK procedure, but one thing noteworthy is that patients with severe deformities of the lens are not suitable to choose a LASIK procedure, for their lenses are difficult to get reshaped any more, so on the contrary implanting intra-ocular contact lens is advisable.
All in all, no matter what kind of procedure you decide to have, you’d better to consult your eye doctor in advance.
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Eyeglasses or contact lenses
Vision correction has greatly contributed to the human civilization. And contact lenses and eyeglasses have long been the most common methods of vision correction. Although many people claim that modern contact lenses win hands down, some other individuals would like to advocate benefits of eyeglasses. There is actually no common sense in this comparison.
Eyeglasses with a single prescription usually offer a wider range of vision correction and additional safety, while contact lenses in modern times are easy to wear and more convenient. The selection of contact lenses over eyeglasses or vice versa indeed involves many factors, including age, eye prescription, work and entertainment environments, peer pressure and finance.
Single focus contact lenses provide wider corrective view than multifocal lenses. For most young adults with a sole vision problem, single contact lenses are the most common. But many old folks need vision correction at more than one distance. In general, multifocal contact lenses are widely used now to correct presbyopia. However, cylindrical correction by contact lenses for astigmatic patients involves more risks that the lenses may move off of the cornea or rotate.
Multifocal contact lenses are usually thicker than single vision contacts and more expensive. Yet another solution to multi-correction is monovision contact lenses. Presbyopic patients can wear a “near” contact lens in one eye and a “far” lens in the other eye. This new form of vision correction can seriously degrade the wearer’s vision at some distances. Actually, the selection of contact lenses in single, multifocal or monovision type mainly depends on the wearer’s vision needs.
Unlike eyeglass lenses, contact lenses are beyond the technology of polarization. But other extra benefits such as anti-glare and UV protection are available from contact lenses. A shortcoming of contacts is that they can not offer adequate protection against bright light and UV rays, because they only cover the cornea.
As the federal law Fairness To Contact Lens Consumer went into effect in 2004, prices of contacts are now much lower because patients can buy contact from any sources they want.
Shopping for contact lenses online
Shopping online offers a benefit that the product will be delivered directly to one’s home. In the past, online shopping was considered as a luxury, which is no longer true now. In the contrary, this way of buying can save both money and time. Those people buying goods online on a regular basis can make their lives easier when they are busy.
Contact lenses are just one of the products available online. Price of contact lenses is a critical factor for most contacts wearers, especially the ones preferring disposable types. Online market usually offers more competitive contact lenses including disposable ones than local stores. Present now, almost all types of contact lenses are available at numerous online stores, such as soft contacts, RGP lenses, disposable contacts, extended wear lenses, bifocal lenses, colored lenses, toric lenses, orthokeratology contacts, UV blocking lenses, special effect ones and the forth.
Moreover, almost all notable brands of contact lenses are provided by most online stores at an appropriate scale, including Focus Dailies, Cooper Vision, Bausch & Lomb, Ciba Vision, Acuvue, Ocular Science, Vistaken, and Wesley Jessen and so on. For sure, most online contacts shops also offer lens solutions and lens cases.
Among the countless choices, it can be difficult to choose a right contact lens store on the Internet. The first priority should be given to safe products, because secure contact lenses are essential to maintain eye health. Reputable stores are usually the favorite choice. Actually there are many factors of an online contact lens store that should be evaluated, such as customer review, time in business, return and refund policies and the forth.
Other factors such as valid telephone number, prices, shipping fees, order turnaround time should also be considered. It is quite necessary to compare different online stores. Trying an online store for the first time, it is wise to place a small order, in case of being too disappointed if anything goes wrong.
Follow a natural way to leave glasses or contact lenses behind
If you have eye problems, glasses or contact lenses might be your first choice due to its convenience feature, but you need to note that they will do much harm to your eyes far outweigh good. For example, glasses are both expensive and easily broken, while the contact lenses can be easily lost, and more importantly, it should be periodically replaced by new in order to fulfill its function, which is a heavy burden to many people.
Here’s a natural way to correct your vision without paying a lot on eyeglasses or contacts, and even going to the optometrist. In addition, you don’t have to care about the strange frames on your face any more. In view of these advantages, natural correction of vision has been welcomed by more and more people these days.
The following steps, which are easy and will take quick effect, will teach you how to correct your vision. As we all know, eyes can easily adjust to new situations, especially in a dark room, you will begin to see objects after entering for a few seconds. So the first step you should do is to get your eyes rest and get rid of the pain and fatigue resulting from prolonged use of the eyes everyday. It doesn’t mean much time, seven to eight hours each night is enough for your body to restore energy.
Secondly, adequate rest is not enough, you have to ensure the health of the eyes. Certain foods that are rich in vitamins are very good to the eyes, so you just need to keep a healthy diet. Many fruits and vegetables, particularly carrots are high in vitamins, regularly eat these is good for your vision.
By following these steps, you will find your eyesight is naturally improved.
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Asymmetric monovision contact lenses
Unlike bifocal contact lenses, a monovision-treated lens has only one power. Since bifocal contact lenses have two focal points on a single lens, people may take a period of time to adjust to the power change during vision switch. The fitting technique monovision provides another effective solution to prescription eyes.
Using monovision, you can wear a contact lens for distance vision on your dominant eye and another lens for close vision on the other eye. With proper coordination, the two eyes perform well in seeing at all distances, creating acceptable and comfortable vision. Although monovision is rarely used, they fit most of the people without awareness of “distance eye” or “close eye”.
Two monovision variations are designed to suit personal vision demands. First type is mini-monovision. Some people may find that standard monovision can not provide clear distance vision. Mini-monovision adds a slight magnifying power to the close lens. People with mini-monovision can get a perfect vision if they spend much of their time in distance vision and only a little close vision. The other variation is modified monovision, which combines a single vision lens for the distance eye and a bifocal lens for the close eye. This type offer satisfying distance vision as well as acceptable close vision.
Monovision is sometimes a dilemma for some people, that it may bring neither perfect distance vision nor close vision. In addition, the two eyes may be not in perfect coordination so that depth perception is affected.
Monovision contact lenses’ fitting requires more skills and more time. The wearer’s vision dissatisfaction can be magnified even by a slight change in the lens power, which may also spend several days to adjust. In this consideration, monovision contact lenses fitting may be mostly charged twice the fee for a standard contacts fitting.
Monovision contact lenses can also be used for a test to refractive surgeries, such as LASIK, conductive keratoplasty and so on. These surgeries may realize monovision for your eyes. But a prior two-week test of wearing monovision contact lenses is necessary. You can ask your doctor for more information about the difference between monovision and bifocal lenses, and then choose the better one for your personal needs.
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An introduction of contact lenses prescription
Currently, Americans in all 50 states can buy contacts both from ECPs and other sources such as optical chains, warehouse clubs and online stores. This privilege originates from a 2004 legislation that patients are entitled to obtain a copy of contacts prescription from ECPs without extra cost, which was only available in certain states before that time. This law profoundly separated fitting and lenses buying. You will never be forced to buy contacts from ECPs after been fitted. Today, contacts prescriptions are just like ones of other medical products like medicines that may provide more information than eyeglasses prescriptions. With a prescription, customers can buy disposable lenses regularly.
An accurate prescription is needed for contacts. Poorly fitting contacts and lenses made of unsuitable materials may cause discomfort, inflammation, swelling, and most severely, permanent vision loss. Sharing contacts may also bring dangerous infections. In US, optometrists, ophthalmologists as well as opticians are entitled to fit contact lenses.
Subtle eye problems may have developed even you are still feeling good with your eyes and contacts. Some ophthalmologists have ever found eye problems during regular eye exams, so that you must update the prescription within a certain period, which is also listed by either federal law or state law. Another point worth mentioning is that you can change your contacts size, material or design if you are diagnosed with a lens-related problem.
Contacts prescriptions use standard terms, abbreviations and measurements, which look like secret codes yet easy for recognition. Besides regular items, your prescription may also tell the recommended replacement period or the expiry. By US law, the expiry normally is at least one year and in most of the cases it may be longer than this. However, you should always follow your ECP for final decision, rather than the products instructions.
article source:An introduction of contact lenses prescription