Posts Tagged ‘internet’

Different Materials Used For Eyeglasses Frames

Monday, February 6th, 2012

Whether you like to wear discount glasses or the most expensive pair in the store, the frames are likely made out of one of a few different materials. Most glasses are made from plastic, metal or a composite material. Within each broad category you can generally find a handful of more detailed categories.

The type you choose will depend on your budget, the look you’re after and the comfort level of the material as the glasses sit on your face. Glasses are a highly individual accessory, and although technically a medical device, the glasses you choose still say a lot about you. It’s always a good idea to take your time when choosing eyeglasses, so you’ll find just the right pair for your face and your personality.

In the plastics category, cellulose acetate is probably the most common material. This type of plastic works for eyeglasses because it is relatively inexpensive and is available in a wide variety of colors, patterns and textures. The versatility of this type of glasses appeals to a wider range of people. Cellulose proprionate is another type of plastic used for glasses that is lightweight and good for making intricate designs. Kevlar is a kind of plastic that was developed for bulletproof vests, but also works well for eyeglasses that may be subject to force or impact. Many types of safety glasses or sports glasses are made from nylon because it is almost impossible to break. Nylon eyeglasses are usually only available in darker colors and may become brittle over time. Optyl is a type of plastic used for glasses that need to be hypoallergenic.

For metal frames, aluminum is one of the choices. Aluminum eyeglasses are lightweight and easy to wear, but are limited as far as different designs because it is difficult to weld. Cobalt is a more expensive metal frame that you won’t find on any discount glasses. Cobalt glasses are flexible, strong, lightweight and can usually be coated with a variety of different colors. Monel is a popular metal used for glasses because it can be made into many different shapes and colors without losing strength. Stainless steel is a metal that’s used often for glasses, and is one of the most corrosion-resistant metals to use.

Composite eyeglasses are generally made from a combination of different materials. Carbon fiber graphite is one type of composite that’s used for glasses to create the endurance of metal eyeglass frames for women while being extremely lightweight. It is naturally black, but you can also get it in different colors for eyeglasses. Copolyamide is a nylon blend that works well for eyeglasses, and Flexon 7 is a composite created from a titanium-based alloy that makes it quite durable. Titanium Ti-227 is a composite that’s about half as heavy as most metal eyeglass frames. This composite is also hypoallergenic, non-corrosive and stronger than regular steel. It is also difficult to extract and refine, meaning you won’t see glasses made from it in any discount glasses stores anytime soon.

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Elements of a Basic Eye Exam

Monday, February 6th, 2012

Whether you’re wearing a pair of discount glasses from the clearance bin or a pair of high-end glasses that just came on the market, it all started with an eye exam. You may have had your eye exam as a matter of routine medical check up at your insurance company’s request, or because you haven’t been seeing things as clearly as you used to. Regardless of the reason, the eye exam is necessary to determine the nature of your vision problem and what type of corrective lenses you’re going to need. Eye exams may vary slightly depending on the doctor or reasons for having one, but most will contain a handful of basic elements.

Your eye doctor will usually want to hear all about the relevant medical history relating to your overall health and specifically your eye health. Do you wear glasses? Have you worn glasses? Have you had any eye diseases? Do any members of your family have eye diseases? He’ll want to see your current eyeglasses and ask if you’ve suffered any eye injuries that may have affected your sight. Once all of the questions have been asked and answered, you’ll probably move on to the eye chart. Most people have used the eye chart before, and it is used to help the eye doctor determine how clear your vision really is. It’s best to be completely honest during the eye chart, and not to guess at letters just to try and get as many right answers as you can.

An ocular motility exam will help the doctor to determine how well your eyes function when it comes to movement, tracking and reflexes. This test helps the eye doctor tell if you have any underlying problems with motility that need to be looked into more closely. At some point, a series of different lenses will be placed in front of your eyes to determine the degree of refractive error in your eyes, and what strength of prescription you’ll need in your glasses. Sometimes eyeglasses aren’t needed at all, but all of the vision tests will help him decide if you need some extra help.

Some of the other elements of eye exams include a slit lamp examination where a high intensity light is shone into the eyes and an opthalmoscopy to give the doctor a close up view of the retina, macula and other structures. Once the exam is completed, the doctor will give you his opinion on the condition of your vision and refer you to another doctor, if necessary. He’ll also write you out a prescription for your eyeglasses or contact lenses if you need any, and let you know when he wants to see you again.

If you revealed a family history of glaucoma or other eye disease, you may be scheduled for some additional tests to measure your field vision and intraocular pressure. The eye exam and subsequent tests should provide a thorough understanding of everything that’s happening with your vision and the cheap eyeglasses that you need to see clearly.

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Reasons to Wear Contact Lenses

Sunday, February 5th, 2012

Once you’ve been diagnosed with a vision problem and have been prescribed corrective lenses, you must decide what you want to wear on your eyes to correct the problem. Glasses are often their first thought, but many people end up turning to contact lenses instead, or switching between the two. At first, the thought of inserting a contact lens directly onto your eyeball may seem a little creepy, but once that initial fear is overcome many people actually prefer contacts for several different reasons. The reasons to wear contact lenses may vary from person to person, but the main reasons are usually similar.

Wearing contact lenses enables people who need corrective lenses to feel as though they don’t need anything at all. Contacts allow for a natural look with no restrictions from glasses frames and so everyone can see their eyes clearly. For some people, wearing contacts allows everyone else to see them as they were meant to be seen. Some of the physical aspects of wearing glasses are another reason that some people choose to wear contacts. Glasses can squeeze the sides of your head or your nose, and have a tendency to fog up when it’s humid or collect raindrops when it’s raining. With contacts, you also don’t have to worry about frames impeding your vision in any way. Not only is the look more natural, but also your vision is also more natural. The frames don’t disturb your peripheral vision, and you won’t have to look through any portion of the frame during your day-to-day activities.

While better overall vision is the main reason to wear contact lenses, there are certain lifestyle elements that make many people lean that way in the first place. Wearing sunglasses is much easier while wearing contact lenses because you can just slide on a regular pair right over the contacts. It’s also easier and more convenient to play sports while wearing contacts, and you can even change the color of your eyes, if you so desire. The fashion elements of wearing glasses will also cease to be an issue when you wear contact lenses. Some people like to have a pair of glasses for every type of occasion, and with contacts this isn’t necessary.

Obviously, wearing contact lenses requires a bit of everyday maintenance and the risk of eye infection is greater if you don’t take care of them properly, but that is up to you. You’re not likely to run into any problems if you follow the care instructions for your contacts. If you like the reasons to wear contacts but are still on the fence, all you can really do is give them a try and see if you think they’ll fit into your lifestyle.

Soft contact lenses are generally more comfortable than rigid or hard contacts, but the hard contacts are usually a little easier to care for. You can usually find deals for cheap contacts that still work the same as the pricier ones. Of course, not all cheap contacts will give the same quality, so be wary when you’re looking. Just ask your eye doctor to go over the possibilities with you and he will offer recommendations if you decide to try them out.

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How to Care For Soft Contact Lenses

Sunday, February 5th, 2012

Soft contact lenses are a popular choice among many contact lens wearers, both for comfort and ease of use. One of the primary concerns of many people who wear contacts is the comfort level of the contact lens as it sits on the eye. With soft contact lenses, that problem isn’t usually a problem at all, but despite the comfort level it’s still crucial to care for soft contacts properly. Improper contact lens care can result in serious eye infections that could even cause blindness in a worst-case scenario. It can seem quite inconvenient and sometimes even a little tricky to treat your contacts the way you should, but in the end the extra effort will be more than worth it.

Basically, caring for your soft contact lenses comes down to cleaning, rinsing and disinfecting. Before you even lay a finger on a soft contact lens, wash your hands well and dry them off with a lint-free towel. Then, take one contact lens out of the holder and clean it with the solution that was recommended by your eye doctor. This helps to wash away any debris from your contacts to keep the comfort level high. Be sure to follow the directions exactly. Different solutions may have slightly different instructions for use.

Before you place the contact lens back in the lens holder, rinse it off one more time to be sure any dirt or debris is removed. It may seem like a little bit of overkill, but you want to be certain that anything sitting directly on your eyeball is clean. Fill each side of the contact lens holder with fresh solution. If there was any left from before, be sure to empty it out before you add more. This disinfection process will kill any microorganisms that are on the contacts, which helps to protect the health of your eyes. Repeat the steps on the other contact. The time that is required for your contacts to disinfect properly will vary depending on the specific product you’re using.

Sometimes, soft contact lens care goes beyond just the clean, rinse and disinfect protocol. Some people deposit more protein onto their contact lenses during use, so their doctor might prescribe a protein removal product. People who have issues with dryness or irritation may want to use eye drops for lubrication as part of the soft contact lens care process. Regardless of how many extra steps you take as part of the process, be sure to keep an eye on the expiration dates of all of your soft contact lens products, especially if they are free of preservatives.

Using solution and other products that have passed expiration is only asking for trouble. It’s also important that you refrain from switching around your discount contacts routine without checking with your eye doctor first. Even small changes can have large implications in the health of your eyes, so always ask before you change something.

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Basic Elements of a Contact Lens Fitting

Saturday, February 4th, 2012

One thing about wearing glasses that is much easier than wearing contacts is the fitting process. Since the contact lens sits directly on your cornea, it’s very important that the correct measurements are taken and that it fits properly. If the fit of contacts is even a little off, you may experience problems while you wear them. Clear vision and comfort are the two most important elements of wearing contact lenses, and both are affected by the fit of the lenses in your eyes. Whether you seek out cheap contacts or the most expensive ones in the store, the correct fit is crucial. All contact lens fitting consist of a few basic elements.

Before the fitting for contacts even begins your eye doctor will test your eyes to determine the strength of corrective lens you need. Then, they will help you decide on the right type of contact lenses for you. They will ask you several lifestyle questions and your preferences regarding the wearing and hygiene schedules. After the testing is done and decision about which type of contacts to wear is complete, you’ll need corneal measurements taken. Contact lenses are not a one-size-fits all kind of product, and the size and curvature of the lens must be correct. The doctor will likely use a device called a keratometer to measure your cornea during the fitting. This takes pictures of your eye to determine the curvature and size of contacts you’ll need for a proper fit.

The doctor will also measure the size of your pupils to help ensure properly fitting contact lenses. The diameter of your iris is also recorded and in some cases a tear film evaluation is taken. This helps to determine if you have dry eyes, and the result may cause you to rethink the choice for contacts. If you have a problem with dry eyes, wearing contact lenses can be quite uncomfortable as the day rolls along. At the least, you will be given eye drops and instructions on how to keep your eyes and contacts moist.

Your eye doctor may also use a biomicroscope to get a highly magnified view of your cornea, so they can watch how a trial contact lens fits in your eye. If the doctor chooses to go with trial contacts, you’ll probably have to wear them for at least 15 minutes to get a true sense of how they fit. They can then give your eyes a detailed examination and determine if the contact lenses fit properly or not. It’s common for contact lens fittings to take at least two office visits, to ensure the right size and style has been selected. Once the fit is good, you’ll get your prescription and you can go get it filled. Cheap contacts are usually available through specials or promotions at many optical stores.

Whether you find acuvue 2 contact lenses or not, make sure you give your prescription details to the retailer preparing them for you, and double check at the end that it’s the right one.

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How to Know If Your Eyeglasses Fit Properly

Saturday, February 4th, 2012

Even though it may be more important when wearing contact lenses, fit is still an important factor when you are wearing eyeglasses. It is true that the lens of a contact sits directly on your cornea, but an ill-fitting pair of glasses can still cause you problems. Most of the issues that result from glasses not fitting properly have to do with pain. You’ll feel pressure in your head, on the bridge of your nose and in your eyes if glasses are too small.

If your eyeglasses are too big, you may have trouble keeping them on your face and you’ll spend more time trying to see with no prescription because the lenses aren’t where they’re supposed to be. The optician at the glasses place will likely take some time to ensure you have a proper fit, but there are also a few ways you can know if your eyeglasses fit properly.

The easiest way to know if your glasses don’t fit right is if they are too big and they slide down your nose as soon as you put them on. If you don’t notice any glaring signs like that, it make take a little more investigation to find out if they fit properly or not. When the glasses are sitting on your face, each eye should be looking through the center of each lens. If that isn’t happening, you could use an adjustment. You might notice that your peripheral vision is affected or there is a glare on the things you’re looking at, which indicates the eyeglasses are either too big or too small. If your eyes seem to be in the right spot, leave the glasses on for a few minutes, then take them off and take a look at your nose. If you see any red marks or indentations where the glasses were sitting on your nose, they aren’t fitting your face properly.

Most of figuring out whether the glasses fit properly is through feel. Pay attention to how they feel on your temples, on your nose and around your ears. If you can feel any pressure or pain in your head, you’ll need an adjustment. When you’re there with the optician, she can make minor adjustments after each check to slowly get just the right fit. The optician will also help you choose a set of frames that match your overall face shape. Picking out a pair of eyeglasses designed for a square face when you have a round face is a sure way to find glasses that don’t fit right.

It can definitely take some tinkering, but once you have a pair of new glasses that fit your face perfectly, you’ll be more likely to wear them more often. Keep an open mind when searching for new glasses, because what you envision and what fits are sometimes two different things. Choose comfort over fashion if it comes to that, because your eyeglasses won’t do you any good if your days are filled with headaches and other problems.

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What Is Nearsightedness?

Sunday, January 22nd, 2012

Nearsightedness, also known as myopia is a term that you may hear after having an eye exam at the doctor. Nearsightedness is one of the conditions that would cause your eye doctor to recommend corrective eye glasses for you to wear. Not all nearsightedness is created equal, and yours may be mild, moderate or severe. The degree of the condition will determine how strong your eyeglasses will be. Basically, someone is nearsighted if objects in the distance look out of focus or blurry. Someone with nearsightedness will often squint when trying to make out something that is far away. After your examination, your eye doctor will determine the strength of your prescription and you can go get your eye glasses and start seeing clearly.

Changes in the shape of your eyeball over time are what generally cause nearsightedness. With normal vision, light enters the eye and focuses directly on the retina. If you are nearsighted, the light focuses on the front part of your retina, disturbing your long distance vision. If you have nearsightedness, you’ll notice that signs in the distance are increasingly difficult to read, or for kids: words and numbers on the blackboard may be harder to make out.

Often, when you ignore your symptoms and don’t bother getting eyeglasses, performance at school, work or on the athletic field may suffer. Some kids will hold their schoolbooks very close to their face or try to sit as close to the front of the classroom as possible. It’s important to keep an open communication with your kids so they know to approach you when any problems such as blurry vision begin. A proper pair of eye glasses will usually clear up the problem, which is why it’s important to visit the eye doctor at the first sign of trouble.

Nearsightedness is a problem that usually starts between six and 12 years of age, but may worsen quickly during adolescence. Some teenagers may need to go get new eyeglasses more than once per year as their eyeballs keep growing. As the eyeballs continue to grow, the shape will continue to change and the light will hit the retina from different angles and in different depths. Eventually, nearsightedness will stop getting worse and will stabilize, so the same pair of eye glasses will last for a longer period of time.

Nearsightedness isn’t difficult for your eye doctor to detect. The standard eye exam will reveal that nearsightedness is the issue, and you will be given the appropriate Acuvue Oasys for eye glasses. It’s wise to have regular eye exams to catch different problems while they’re still relatively new. There’s really no need to strain and struggle with your vision when a pair of eyeglasses can fix the entire problem. Sometimes, surgery may be ordered to deal with your nearsightedness, but for the most part it will be a new pair of eye glasses for you, then regular follow up visits.

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What Are UV Contact Lenses?

Sunday, January 22nd, 2012

People seem to be very aware of the damaging effects of the sun and UV rays in particular, using sunscreen diligently when spending lots of time out in the sun. What many don’t realize is that UV damage isn’t only an issue with your skin. Your eyes are also at risk for UV damage, and while avoiding the sun altogether isn’t always possible or even recommended, you can take steps to help protect your eyes as well as your skin. If you work outside or have a hobby that sees you spend more time in the sun than most, take your eyes seriously or you may live to regret it later.

Many experts suggest using UV protected sunglasses to protect your eyes, but a combination of UV contact lenses and sunglasses may be an even better choice. As the name suggests, UV contact lenses are contacts that also have UV protection. If you are a contact lens wearer and spend a lot of time outdoors, using UV contacts may be the best choice you make regarding your eyes and the sun. UV contact lenses offer protection to the area of your eye that is covered, but the whites may also be affect adversely by UV rays. By throwing on a pair of sunglasses with some strong UV protection, you can really make a difference. UV contacts protect you from some UV damage, but you’ll always be vulnerable to a certain extent if you just wear them alone.

Likewise, when sunglasses are worn alone, UV rays can get into your eyes from the sides. The real benefit comes from wearing both the UV contact lenses and UV protecting sunglasses at the same time. The UV contact lenses you choose may vary slightly in just how much UV protection they offer, so it’s always a good idea to ask your optician before you take them home. In fact, ask for complete instructions on when to use the contacts, how to use them and under which circumstances you probably shouldn’t use them.

The most intense sunlight of the day is between 10am and 2pm, which means your exposure to UV light is the strongest then, too. It’s still wise to wear UV contacts the whole time you’re out in the sun, even if it doesn’t fall within those time frames. It’s also wise to pay attention to situations where there will be a lot of reflected light. Bodies of water like oceans or lakes, beaches and snow all reflect light and increase the intensity of the sun’s rays.

Along with wearing a good pair of UV contact lenses and some sunglasses, you can also use nutrition to help keep your eyes protected. Leafy green vegetables like kale and spinach are beneficial, as are broccoli and orange or yellow fruits and vegetables. It takes a complete effort and several different factors to keep your eyes protected from the dangers of UV light. Choose your UV contact lenses wisely, and follow other sensible advice and tips and your eyes will remain healthy for years to come.

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How to Choose Contact Lens Solution

Sunday, January 22nd, 2012

One of the important aspects of wearing contact lenses is choosing a good contact lens solution. Sometimes, your eye doctor may offer suggestion as to which solutions may work the best, but if that doesn’t happen you may be left to decide for yourself. Some contact lens wearers probably downplay the importance of the contact solution, but it can affect the entire contact lens process. It’s wise to keep several different variables in mind when you go searching for a contact lens solution.

A contact lens solution’s ability to disinfect and keep the contact lenses clean is the most important consideration. If your contact lenses are properly and thoroughly disinfected, you will have less eye irritation and fewer incidences of infection. Your eye doctor, optician or possibly even a pharmacist may be able to offer you advice on which solutions do the best job at cleaning and disinfecting contact lenses. You can also ask around to other contact lens wearers you know to gather some feedback on their experiences. It’s also important to follow the cleaning procedure closely, so debris doesn’t inadvertently find its way onto the inside of your contact lens and into your eyes.

Price is always a factor for contact lens patients, as a finding a solution that’s even a few dollars less may result in big savings over time. The only problem with searching for contact lens solution based on price is that you’re likely to sacrifice quality in the process. That’s not to say everyone who wears contact lenses should opt for the priciest solution, but it’s a good idea not to grab for the cheapest just to save a few bucks. Look for a contact lens solution that fits your budget but will still offer everything you need in the way of cleaning and disinfection. You’ll also want a contact lens solution that is easy to use. Ease of use will help to ensure that you use the solution properly each day, and your contacts stay clean all the time. Some solutions require rubbing and rinsing, while others only need the rinsing part. Read the directions carefully and choose the solution that you feel will enable you to use it consistently as directed.

Obviously, one of the main priorities when wearing contacts is comfort. If contact lenses aren’t comfortable, they aren’t likely to be worn with any regularity, which defeats the whole purpose of having contacts. Finding a contact lens solution that promotes comfort may take a little trial and error, but it is worth when you find one that makes your contacts even more comfortable.

A solution that keeps the discount contact lenses clean and well lubricated during the day means they will be easier and more comfortable to wear. The solution contains buffers that affect the pH and other elements that help contribute to comfort. Many people stop wearing contacts due to comfort issues, so any help you can get in this area is worth the effort.

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What Is Astigmatism?

Sunday, January 22nd, 2012

When you make a visit to your eye doctor for an exam to determine the nature of your vision problems, you may end up hearing the word astigmatism. Along with nearsightedness or myopia, and farsightedness or hyperopia, astigmatism is a common diagnosis that requires a prescription for glasses. With farsightedness, a patient has trouble seeing objects that are in close range, while with nearsightedness, objects in the distance are blurred or out of focus. When you have astigmatism, your vision is blurred at any distance, making the need for glasses even more important. Sometimes, people with nearsightedness or farsightedness can compensate, as one type of vision is still good, but with astigmatism that’s much more difficult.

Astigmatism occurs when the lens within your eye, or the cornea itself is curved or irregularly shaped. When this happens, the light that enters your eye can’t focus on the retina correctly and your vision is blurred. Astigmatism is a common condition that most people have to some degree. Smaller amounts of astigmatism don’t always require corrective glasses, but when it starts to affect your vision, glasses are a common remedy. Wearing glasses can help you see items both up close and far away with greater clarity. If you have astigmatism with blurred vision and don’t bother getting glasses, you may experience headaches and general eye discomfort in addition to the reduced vision. It isn’t uncommon for people to delay making the appointment because they don’t want to have to worry about glasses, but it’s usually well worth the effort.

Astigmatism is a condition that’s usually evident from birth, but can change as time rolls along. As a child grows, the astigmatism may get better or worse, and corrective glasses may be required. The only real way to know if you have astigmatism, or the degree is to make an appointment with your eye doctor. The doctor will measure how your eyes focus light and will figure out the power of the glasses you’re going to need to correct the issue. If you have astigmatism, a correctly prescribed pair of glasses can change the way the light enters your eye. Once this change, takes place, you’ll be able to see everything clearly.

If you have astigmatism, but really aren’t interested in wearing glasses, your doctor may suggest laser surgery as another option. Laser surgery isn’t possible for all types of astigmatism, but if it is for yours, the shape of your cornea will be changed to correct the problem. Small amounts of tissue are removed with the laser and your vision issue is corrected.

For those where surgery isn’t possible, mens glasses will make the correction. Astigmatism isn’t a horribly serious eye condition, but definitely one you’ll want to take seriously and get treatment for. Not being able to read the newspaper clearly may not be life threatening, but if you can’t read street signs clearly, you may end up in more serious trouble. It’s always a good idea to make an appointment with an eye doctor as soon and you notice any type of vision loss.

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