Browsing: Eyes Vision

Varifocals And Their Uses

Varifocals also called the progressive lens are smooth in appearance with three different prescription zones. Look through the top you'll see distance objects, through the middle for intermediate and the bottom of the lens for reading.

The experience is progressive as your eye moves up and down the lens. Like a camera lens with variable focal length in which focus changes as focal length and magnification changes.

The lenses in Varifocals allows you to see objects at varying distances giving you back your natural vision and help you to see the way you used too.

Who Wears Varifocals

Varifocals are popular among people aged 40 and above who live an active lifestyle and require three prescriptions but only want to own one pair of glasses. The varifocal lens is generally more expensive than that of say a bifocal lens, partly due to the complex involved in its manufacture even though it's been commercially available since 1922.

Varifocal Lens Types

Advanced lens manufacturing has seen a number of different types of varifocal lens arrive in the market place. Each supplier trying to seek perfection as they explore new combinations of materials and methods that may enhance production.

Some well established brands clinically test their lenses and provide a guarantee or certificate of authenticity which describes the lens's characteristics and prescription, a point possibly worth considering before purchasing Varifocals.

Several providers name their lenses in a bid to clarify exactly what the lens has to offer, one example could have been the field of vision, another might be for reading especially in poor light. Varifocals do a similar job but in a different way.

A Varifocal or Bifocal Lens

Varifocals have three prescription zones where the bifocal has two leaving out the intermediate. It is not uncommon for a bifocal wearer to experience heads and even dizziness in some cases. One reason being the small field of view offered by the reading segment of bifocals which can take time adjust. One solution is for the wearer to learn to move their head or the reading material rather than the eyes.

The introduction of computer monitors placed directly in front of user can lead to muscle fatigue due to the unusual straight and constant movement of the head. This may be reduced by the use of trifocal lenses or specific office lens designed for computer use.

Why Reglaze Varifocals

There are so many benefits for putting new lenses into your exciting frames. First you'll save a significant amount of money on your lenses by purchasing your reglaze online.

Second by using your existing frame means you will not have to pay out for another. Thirdly, being comfortable with type of lenses the characteristics of the lenses you are simply getting a newer prescription.

Where To Reglaze Your Varifocals

Perhaps one of the most trusted places on line is a world known brand who now offers a Varifocals reglaze service bringing that extra piece of mind and value for money.

They offer a simple point and click process which you can do in less than 60 seconds to order. Then pop your glasses in the post and in no time at all they will come back with your new varifocals prescription glazed into your existing frames.

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Common Myths About Cheap Specs Dispelled

The internet is a wonderful place. It has enabled us to buy virtually anything we want, and it has also bought the price of many different items down by a huge amount, with one of these items being the humble pair of glasses. It is now infinite possible to buy a set of cheap specs online costing a fraction of the price they would cost in a regular optician, so the question has not asked: why are not more people making use of this money-saving service?

Well, the simple answer to this is that most people see a direct correlation between price and quality, which in many cases is true. In the case of cheap glasses though, this is not true at all – glasses bought online are just as good as the ones found on the High Street up and down the country. So let's have a look at a few common misconceptions that people have regarding cheap glasses from the internet …

They Do not Work As Well

This is perhaps the most important problem that people have when it comes to buying cheap glasses online, but the fact is that it is a completely untrue statement. Regardless of where you buy your glasses from – whether online or in an optician – the process of getting the correct lenses in will be the same. In fact, because online stores are in less of a rush to meet the time restraints placed on optician's by impatient customers, the chances of mistakes are even less.

They Are Less Robust

Many people think that the reason cheap specs are so cheap is because they are made using inferior material or because the craftsmanship that has gone into them is in some way not as good. This is again untrue. The reason that glasses from the internet are cheaper is not because of this; it is because the online retailers do not have all of the big overheads that the High Street opticians have. This means that they do not have to constantly push their prices up and up to cover their rent or their staff costs. All reputable online stores will sell glasses of a high quality – although they still will not be strong enough to survive when you accidently sit on them late at night!

They Are not As Nice

The design of a pair of glasses in relation to how nice they look is, or course, completely subjective, but one thing is for sure – the designs of cheap glasses bought online can be just as appealing as designs from any of the world's largest companies , such as Calvin Klein and Hugo Boss. If you are desperate to buy designer glasses, then there are even a number of online stores that sell them very cheaply, therefore meaning that you can still relax in the knowledge that you are “cool”.

As can be seen, the various myths about cheap specs from the internet are untrue. In a time when people are finding their purse strings getting tightened by the day, we need to ensure that we get the best value for money possible. For many people buying glasses is a necessary purchase, but spending huge amounts of money is not necessary at all!

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Why Are Rimless Glasses Becoming Popular!

Why Are Rimless Glasses Becoming Popular!

Rimless Glasses sometimes referred to as rimless prescription specters are designed so that the lenses are fitted with small nuts and bolts or metal pins with thin transparent clips on the back to secure the lenses to the frame.

Benefit

The main benefit is cosmetic appearance as some people prefer not to have a bold colored frame perched on their face and prefer to opt for something less visible and some say say distinguished.

Styles

The style of Rimless Glasses can be divided into two subtypes:

1) Called the three piece glasses, where the lenses are mounted onto a bridge with two separate temple arms.

2) Referred to in the UK as Semi Rimless also known as rimways or cortlands in the USA, adopt a supporting arch that connects the difficulties to the bridge and provides extra stability for the lenses.

History

Rimless glasses have always been popular specifically in America from the 1880s until the 1960s, they then re-emerged in popularity in the late part of the 20th century and early 21st century.

Today

Unfortunately, there is so much hype out there right now of the latest fashion and style of rimless glasses that sound good online and offline, but having invested in a good pair already to replace these would be too much as an option. But as you may have already seen, a large percentage of this advertising is geared to convincing you to change your frames, when you may not need too, when you would only need to reglaze your glasses by just changing your lenses.

What if you just do not know who's Reglaze Glasses service to trust, or the expense involved, or with a busy lifestyle when and how to do this?

Moreover, I know how hard it can be when you have a personal attachment to your existing frames, being precious to you, as they compliment you in every way. So KEEP the frames that make you HAPPY and simply use a named brand to solve the problem, more over a global one would be better.

Reglaze Glasses Solution

A small number of global trusted online trusted retailers today provide a Reglaze Rimless Glasses Service.

Moreovermore these retailers would also be specialist in rimless frames providing a high quality product at a reduced price to that offered by the high street and more importantly with one service you can order in 60 Seconds.

Whether high index Thin Rimless, Bifocal or Varifocal lenses, with a Tint or Photochromic coatings, global retail brands specialize in these types of lenses, so it is worth looking into this.

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What Are Varifocal Glasses?

You have probably heard of the term “varifocal glasses before but, like the majority of people in the country, you probably do not know exactly what they are. glasses, so that you can understand exactly what you are putting in front of your eyes if you are prescribed them by the optician! After all, there are millions of people in the UK alone wearing varifocal glasses, so it pays to know what they are .

In a nutshell, varifocal glasses are prescribed to those who need to wear glasses for both seeing things that are close to them and for seeing things that are far away – ie they are both short-sighted and long-sighted. The only other option to varifocal lenses in this situation is to clearly have two pairs of glasses, but this is obviously a really big pain for people, as they have to keep swapping them over every single time they want to look at something new!

All varifocal glasses have three different areas of distance, and these are known as far, intermediate and near. This means that wearers have to look through different parts of the lenses in order to focus on a specific object – one of the reasons why people do not get along with this design. The fact is that though if the glasses are designed to the right size, this action is easy to do. If you have just started to need varifocal glasses, then try to ensure that you get a pair that has a large depth to them, as this will mean that you can use all of the distances without too much trouble. As with all things though, once you get used to them they are like second nature.

Varifocal glasses are usually designed to fit your own specific requirements, as the areas of the glasses can be increased and decreased in size depending on how often you use them. For example, if you work in front of a computer all day, you will need to use the intermediate area a lot, so this can be made larger. If you drive a lot however, you should go for a lens that has a large far area. Talking to an optician will allow you to come up with the best design – although do not buy from them, as there are much cheaper alternatives online!

Varifocal glasses can come in a number of different styles, such as Wayfarer glasses or rimless glasses, meaning that they do not need to affect your own individual sense of style or comfort. What's more they are not as expensive as you might think, as they are becoming more and more popular, which is driving the price down considerably. As already mentioned though, if price is an issue then you should make sure that you buy online, as this is where you will find the largest selection of cheap varifocal glasses for sale.

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UV Activated Lenses

Protecting your eyes from the sun's harmful rays is every bit as important as protecting your skin, but many people who need corrective lenses fail to do so because they forget to switch their prescription glasses for prescription sunglasses. Having two pairs of glasses is a hassle, and many tend to leave their “other glasses” at home, at work, or in another car.

The easy solution is light-sensitive lenses, but many avoid UV activated lenses and opt for permanent tints or none at all because they remember the lenses taking several minutes to change. The delay in changing often made it difficult to see for people who often walked between bright light and indoor lighting.

Today's lenses can switch from sunglass-type protection to clear more quickly than ever before, making this option one of the best to protect your eyes from the summer sun. There's no more need to wear your sunglasses inside or damage your eyes by forgetting them when you go out.

UV Protection

Without the option of sunscreen for your eyes or a permanent masks to protect them from the sun's harmful rays, prescription eyeglass wearers need to be proactive in protecting themselves from the damage UV rays can cause. The constant bombardment of ultraviolet rays can hasten or cause the onset of eye damage, especially in winter when people typically forget the reflective nature of snow and ice. Glasses that change tint in the sunlight are a good investment to protect your eyes year round.

Instead of having to treat your eyes after the fact for overexposure, avoid the problem with UV sensitive lenses. These lenses act as a sensor and detect how much UV light is bombarding your eyes and switch to a tint that is appropriate for your eye protection. Long-term exposure to harmful UV rays can damage your eyes and the skin around them with harmful effects ranging from chronic dry eyes to skin cancer on the eyelids.

Comfort

Remembering to grab your sunglasses on the way out the doors has never been easier. Since the UV activated lenses are your usual glasses, you'll never forget them for a day at the beach and have to suffer through that constant feeling of sun in your eyes. Since the lenses adjust automatically, your comfort level increases dramatically as well. If you need glasses to see, you'll always have your eyes protected as well.

Style

UV activated lenses can be purchased with virtually any eyeglasses frame that you prefer, making it possible to create a style that is uniquely your own. Since you choose frames with the intent of using them as a daily accessory, this option will definitely increase the value of your investment. Instead of buying a separate pair of sunglasses, find the exact frame you want to wear every day and customize them with UV activated lenses. Sunlight sensitive lenses are available at most custom eyewear stores and your optician can help you figure out what level of protection is best for your specific eye conditions.

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Eyeglasses and Celebrities: Serious Look for a Serious Role!

Everyone's heard the classic saying “guys do not make passes at girls who wear glasses”. Well, while that is a very famous phrase, who said it must have never met today's celebrity women! Celebrities have always donned the right pair of specs, should their role depend on it. However, now it is common practice for just about every celeb to walk everywhere wearing some sort of eyeglasses frames – whether they actually even need vision correction or not! This leads to the next set of questions, and the ones at hand: 'Are celebrities wearing glasses to help their act?' 'Do glasses help entertainers look smarter; and therefore urge everyone to take them more seriously? ' 'Why is it that celebrities are just now allowing themselves to wear their corrective eyewear outside of the house?' And of course, one of the most important questions of the hour: 'Do they even need prescription eyeglasses?'

Glasses have been around for quite sometime. It's no secret that they make you look smarter, and therefore [in our seemingly, not-too-distant-past] they made you look nerdy. However, in general, today's fashion is grabbing for any available eyeglasses! So, it makes you wonder: are the celebrities presenting this new style? Or, are they just following it? It seems that in the present day, many of our favorite stars – that have already always been taken fairly seriously (like Brad Pitt, Ryan Gosling, Julia Roberts or Johnny Depp) – are donning their trusty eyeglasses far more often than ever before! Recently, they've also all been taking on new, and certainly even more serious acting roles.

With his more serious roles, in films like The Curios Case of Benjamin Button or The Tree of Life, Brad Pitt has taken on a new name for himself – a bit separate from his equally popular, but more “mainstream” style of the Ocean's Eleven series. Taking a step out of the very popular hollywood blockbusters to focus more on his style of indie-type movies, it looks that Ryan Gosling wants his new work to be taken just as seriously as anything he's done in the past. That's probably the reason he's always seen in his new full frames! Julia Roberts has taken a different route when it comes to her tactics. While she has taken fairly more serious roles, such as Charlie Wilson's War, she has also taken a step back from the spotlight she once had. Somehow, this hiatus – and her new smart look, has only made her more popular! Johnny Depp – always eccentric, yet equally important to the film world – continues to star in his popular mainstream movies, like the Pirates of the Caribbean series, but will likely always do his own thing as well. Luckily his sexy specs keep him up-to-date, and wise at the same time!

If you want to look like your favorite celebrities without spending the same dough, there are all sorts of great deals for glasses online ! You can find rimless, full-framed, plastic, or metal – styles of all colors and shapes when you look online for glasses frames. You do not need to spend a fortune for great quality glasses (like your favorite celebs do); and if you do not have that same type of budget, cheap eyeglasses will likely work out best for you! Go ahead, look smarter, be taken more seriously, and get some new glasses!

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How Does Crying Affect Your Eyes?

Have you ever had one of those days where you simply can not stop crying? Perhaps you've lost a loved one and you cry until there are literally no tears left? There's a very famous common expression to “have a good cry”; we've all heard it, and possibly even said it a time or two … However, what is the exact meaning behind it? Is it even really possible to have a 'good' cry ?? Is the expression referring to your emotional state? Or despite, your physical state? In this article we will explore the nature behind tears welling up, and the physical effect crying have on our eyes.

We can cry for all different types of reasons: over the loss of someone close, a busy and stressful day – or even a good laugh can make us cry! In the middle of crying, we often wait to immediately wipe our tears away and simply stop crying. Well, while we all know it may not be so simple, research is now being presented that it may not be the best option either! There are three main types of tears: simple eye-watering tears and basal tears, and stress-related or emotional tears.

Our eyes can begin to water without any sort of emotional adverse. Watery eyes is due to a physical reaction, and can protect our eyes from foreign bodies, like: dust and debris. These are typically called reflex tears. Basal tears are a little different, but still appear on a protective level. All of us have a liquid layer protecting our eyes from getting discharged out; that layer is known as basal tears. In order to ensure our eyes will not dry out, or receive any bacteria, basal tears keep our eyes lubricated at [almost] all times. Typically we know exactly what stress-related and emotional tears are – though, there are of course many levels of intensity. However, recent research suggests that these tears actually differ significantly than any kind of protective-type of tears due to the components making up the tears. Typically though, additional lubrication to our eyes (via emotional crying) can only offer extra physical benefits to the eye.

While crying does not physical damage our eyes, crying for extended periods of time can cause temporary stressors to our eyes, face, and body in general. Believe it or not, producing [emotional or stress-related] tears actually causes the body a lot of work. Therefore, when you are crying for a long period of time, you are literally exhausting yourself. Here the reason we always so exhausted after a 'good' cry! If you are not hydrated enough, you could have a headache, and generally feel all-around weak.

Let's face it: it's hard to block tears when they're on their way! There are some ways to try and stop, or at least less the flow of heavy crying – oftentimes laughter can play a big role in that! However, if you're looking to cover up your darkened, circle-ridden eyes after a day of bawling crying, there are other alternatives! You could go with the classic approach of wearing sunglasses or regular prescription glasses. However, you want to be careful when wearing a pair of eyeglasses frames because depending on your prescription, you may actually enhance your look! No matter how you choose to continue after a day full of tears, just take solace in knowing that the old wives tale was not far off … So feel free to go, and have a good cry!

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Defining Your Style Through Eyewear

Most people think clothes, or possibly shoes, when they think about creating their personal style, but they may be missing an important way to create a look that is entirely their own. Over the years, many people have established their own look just by consistently choosing eyeglasses that help define their personalities.

The trend to create a personal look through eyewear goes back decades to legends like Buddy Holly and Audrey Hepburn, but it did not stop there. Paris Hilton has adopted the Audrey Hepburn look with oversized round sunglasses. Johnny Depp is often seen sporting sporting red-tinted round glasses a la John Lennon. The use of glasses to define one's look even slips into fiction. After all, who can picture Harry Potter without his round wire frames? And after Top Gun, it looked like half the nation was sporting Aviator sunglasses, just to look cool.

Buddy Holly

Almost every picture of 1950s rock legend Buddy Holly features his black plastic frame eyeglasses. With a slight point at each corner, the glasses are reminiscent of the cat-eye glasses popular in the decade and the so-called “birth control” glasses that are standard military issue. The reality though is that Holly worked closely with his optometrist to find just the right look.

The doctor found the black frames by Faiosa in Mexico and convinced Holly to give up his other choices. The glasses were so much a part of Holly's image that after he died in a plane crash, it was noted by the coroner that his trademark specs were not found in rubble. They were recovered months later and sat unclaimed in the sheriff's office for the next 19 years. Sometimes they were returned to his widow and became part of an exhibition honoring Holly in his hometown of Lubbock, Texas.

Audrey Hepburn

After Breakfast at Tiffany's, Audrey Hepburn established her style with trademark cat-eye sunglasses that are sometimes mistaken for Wayfarers. The tortoise-shell frames and double bar across the nose seemed to be designed for Hepburn and her eyes certainly made movie-goers' attention when she lowered the glasses just enough to look over them.

The sunglasses were formally the Manhattan style and were re-released in 2011 to commemorate the 50th anniversary of the movie.

Creating Your Style

Working with your optometrist or optician to create an eyewear look that is distinctively your own puts you in great company. Whether one needs corrective lenses or not, glasses can add a signature style to any fashion look.

To choose yours, start with a basic eye exam. Just like your skin, your eyes can be damaged by the sun's UV rays, so pick up a pair of flirty and fun sunglasses or release your inner geek chic with lenses eyeglasses that will help you see better. An annual eye exam will help keep your eyes healthy and a great frame can help you be a more iconic you.

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A Brief History of Glasses

With the advent of augmented reality eyewear, at least a portion of our future is coming down to a very old invention: eyeglasses. It might surprise you to learn that glasses and sunglasses have been around in some form or another since ancient times. Learn more about the history of glasses and what the future may hold.

Early Eyewear

The earliest accounts of eyewear involve people using natural minerals as lenses. Ancient Egyptian hieroglyphs mark the first record of glass lenses being used for magnification. The Roman Emperor, Nero, used an emerald as a corrective lens to watch gladiatorial games. Flat, smoky quartz was used in 12th century China for sunglasses. The Inuit used goggles made of flattened walrus ivory with narrow slits as protection from the sun.

While traveling through Italy around 1286, a Dominican friar, Giordano de Pisa, witnessed an invention so remarkable that he later delivered a sermon praising the creation – eyeglasses. Unfortunately, the inventor of this incredible creation did not divulge how to recreate its invention. However, thanks to Friar Alessandro della Spina, the story does not stop there. The friar, a skilled college of Giordano, was able to replicate the invention to produce corrective eyewear, and he disclosed the process freely to all who wanted to know.

Frame Evolution

Spectacles continued evolving, both in form and use. Instead of being sole held up to the eyes, new framing that pinched the nose allowed glasses to stay on the face. This pince-nez style was uncomfortable, and many variations failed before the over-ear style came to prominence.

Lens Evolution

Lenses also evolved alongside frames and gained new uses. One of America's founding fathers, Benjamin Franklin had both presbyopia and myopia, which led to his invention of bifocals. In 1880, African-American inventor P. Johnson patented “eye protectors” for firemen and welders.

Glasses as Fashion

Since their inception, glasses have moved beyond being merely for corrective and protective purposes and into the realm of high fashion. Sunglasses from luxury designers such as Dolce & Gabbana and Louis Vuitton retail between $ 500 – $ 1,000 per pair. Sunglasses brands Ray-Ban and Oakley have become conspicuous with high quality and style.

Eyewear and Augmented Reality

Technological advances are also shaping the eyewear industry with the advent of 3D cinema and augmented reality. 3D glasses have changed and are no longer blue and red lenses in flimsy white paper frames. The resurgence of 3D films has seen improved 3D glasses with dark, polarized lenses in hard frames. These films and eyewear are finding their way into the home with 3D compatible TVs.

Google revealed their augmented reality glasses prototype in early 2012. The project, dubbed Project Glass, would allow the user to access the internet and information they would typically store on a smartphone via voice commands. A video from Google demonstrated a young man using the glasses to take pictures, map out directions, check his schedule, text, and take video calls, all while the glasses rested on his face.

Nobody knows what the future holds for eyewear, whether it's corrective or electric, but for now, glasses and sunglasses offer both style and functionality for everyone.

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5 Signs You Need Low Power Reading Glasses

Did you know you could need low power reading glasses even if you can see fine? If you have eye strain issues or irritation caused from spending too many hours working at the computer, you could need reading glasses or other computer glasses even if your vision is 20/20.

The best way to know whether or not you can benefit from low power reading glasses is to visit an optometrist. A visit to an eye doctor can tell you exactly what strength lenses you need and can ensure that you do not have any eye health issues that could be aggravating you eyes.

Eye problems caused from using the computer are lumped into a vaguely defined condition called computer vision syndrome – or CVS.

Here are five signs you have CVS and could benefit from low power reading glasses.

1. Scaly eyelids. Cracked, painful and scaling eyelids are usually caused by bacteria that spreads around your eyes when you rub them. If you're experiencing eye strain symptoms, you're more likely to rub your eyes, and that means you're more likely to spread the harmful bacteria.

2. Blurriness. If the text and graphics on your computer screen are not as clear as they once were, it could be a sign that your vision has weakened slightly. This does not mean that your sight is failing or that you're getting old. It just means your eyes need some help now.

3. Pain. Eyes are controlled by muscles, and those muscles can get stretched from overuse just like the others in your body. Eye pain is often intense and extremely unpleasing, but low power reading glasses can allow the muscles in your eyes to relax a bit so you'll feel less pain when you're concentrating.

4. Grittiness. That feeling that there's something in your eye or that your eyes are scratchy or irritated is a sign of dry eye syndrome. While dry eyes are treated with artificial tears or lubricated eye drops instead of low power reading glasses , eye strain and dry eyes go together. Both are symptoms of CVS, and many people require both drops and glasses to solve their computer eye strain symptoms.

5. Inability to concentrate. Head pain, fogginess and an inability to concentrate are all symptoms of computer-related eye problems too. When your eyes hurt, the pain and irritation causes frustration that dulls mental sharpness, decrees stamina and makes you feel like you do not want to work.

There's good news, however. Even if you have all of the symptoms above – as many people do – low power reading glasses can solve them for you. You may not be able to find the glasses you need at a drugstore or discount chain because the ones available there are too powerful for you, but you can order inexpensive custom-made readers online.

You can even look around for some funky and high-tech computer glasses. They often contain low-level magnification as well as tinting and could be just what you need to solve your eye problems.

You do not have to live with computer vision syndrome and other eye problems. Low power reading glasses can help you get back to whatever you need to be doing on the computer.

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Eyes and Seeing

People often say: 'Seeing is believing'. For most people, eyesight or vision is the main sense. More than half of the knowledge inside a brain enters through the eyes in the form of words, diagrams, pictures, and other visual information. (Like now, as you read these words). So our eyes are our most important sensory organs. A sense organ is specialized to detect some aspect of the surroundings in the eye's case, light; and produce tiny electrical nerve signals that travel to the brain. The eye records what we see, but does not interpret, analyze, or understand it. This happens in the sight centers at the lower rear of the brain. Here, the nerve signals from the eyes are decoded and analyzed. The result is that se see the outside world in our “mind's eye” in full color and three dimensions, showing the tiniest movements, intricate patterns and amazing details.

The eyeball's tough, whiter outer layer is the sclera. Inside this is a soft, blood-rich, nourishing layer, the choroid. Within this, around the sides and back of the eye, is the retina. This layer detects patterns of light rays and turns them into nerve signals, which go along the optic nerve to the brain. The bulk of the eyeball is filled with a clear jelly, vitreous humor. At the front of the eye is the dome-shaped cornea, through which light rays enter. They pass through a hole, the pupil, in a ring of muscle, the iris. Then the rays shine through the bulging lens, which bends or focuses them to form a sharp, clear picture on the retina.

The retina is about twice the area of ​​a thumbnail. Yet it contains more than 130 million microscopic, light-sensitive cells, called rods and cones because of their shape. Rods number more than 120 million. They work well in dim light, but detect only shades of gray, with no colors. Cones are centered around the back of the retina. They see colors and fine details, but only work in bright light.

There are three main types of cone cells in the eye. Each type is most sensitive to a particular color light red, green, or blue. The thousands of delicate colors light and hues we see are combinations of these types of these three primary colors. In some people, a particular type of cone does not work properly, or is absent. This means color vision can not work properly.

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Varifocal Wins Over Bifocal

As you look through a varifocal lens for the first time you'll notice your distance prescription zone is at eye level, look down the lens and through the narrow corridor to discover the power increases toward the near or reading zone.

A primary advantage of a varifocals over that of a bifocals, apart from the obvious cosmetic advantage by not having a line is that instead of just distance and near prescription zones you also enjoy the benefits of having the intermediate zones as well.

Varifocal Characteristics

From your eye examination the optician will share their findings with the dispenser to ascertain your needs and expectations. Should it be determined that a progressive or varifocal lens suits then a varifocal will be recommended.

A varifocal has three prescription zones. At eye level its distance, look down through the corridor and its intermediate and the bottom you'll find your reading zone.

Many people do not realize that bifocals often give a larger reading area than varifocals so if near or reading is your primary reason for needing spectacles then a varifocal may not be the most appropriate lens.
General Purpose Varifocal

Often optical dispensers describe varifocals and bifocals as 90% lens. By this they mean that the lens works very well for most daily tasks, such as reading while watching TV, but there are also fundamental tasks for which they fail, such as reading your computer screen at eye level or reading a notice board or prices on the shelf.

You should always be informed of the negative as well as the positive aspects of any optical lens during dispense, and its why there are many different types of varifocal.

Varifocal Distortion

The lenses of Varifocals have some level of distortion on either side of the vision corridor. Each varifocal will create different levels of peripheral distortion.

Something simple like increasing the reading add slightly can make a previously successful wearer of varifocals, experience difficulties. This is due to distortion above the horizontal midline so causing distortion effects even with distance vision.

Varifocal Variations Price Verses Quality

There are a number of different types of varifocal lens and each one comes with its own qualities and exceptions. A standard lens is plastic and called a CR39. It's safer than glass and the cost depends on the type of lens you have. For example; the reading zone, the length of the reading corridor and the position of the near corridor. Other factors are high index for thinner lenses, photochromic to darken in the sun and polycarbonate for impact resistance all add cost to the end product.

These days when costs are a prime concern, new money saving services are arriving with a quality product. Thin plastic Varifocal lenses with a Photochromic Coating can be provided by specialists through known trusted internet retailers to bring a great product, unique pricing structure that is simple to use and the savings are amazing. Best of all with one such service you can order in 60 Seconds, let me say that again sixty seconds!

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Complications of a Cataract Surgery That Doctors May Hide From You

The human eye has a crystalline lens where the light can pass through towards the retina, thereby creating clear vision. Cataract is a problem which develops on the lens of the eyes and causes problems of the sight. It is a sort of cloudy spot which can complicate doing regular activities. Common symptom of this problem includes changes in the color perception, blurry vision, darkening of the vision and night blindness.

In conventional medicine, there is no drug or prescription that can address the cataract problem. Thus, sufferers are left with surgery as their only option. Cataract surgery is a process in which a small incision is made in the side of the cornea (the front part of the eye) where it is inserted an instrument that uses high frequency ultrasound to break up the center of the natural lens of the eye and suction it out. This is replaced by a lens implant made of plastic, silicone or acrylic, which becomes a permanent part of the eye. However, complications of a cataract surgery are often to happen. The eye is one of the most delicate organs of the body and performing a surgery on it is likely to cause it damage.

The most common of the complications of a cataract surgery is the condition known as posterior capsule opacity. This happens when lens capsule which serves as the protection of the eye lens developed cells coming from the outer layer of the eye cornea. The cells start to grow in the capsule which leads to hazy vision. Another common complication of a cataract surgery is the dislocation of the intraocular lens which was implanted on the eyes. This condition of the lens getting out of position can lead the patient to have a double vision. Endophthalmitis is considered one of the worst complications which may occur following the cataract surgery. This is an infection that can happen on the entirety of the eye and can result in total and permanent blindness. A person who underwent this procedure is likely to develop other complications such as squint, glaucoma and retinal detachment.

These are the common complaints of sufferers who have come to me for homeopathic treatment (they were operated of one eye only) and previously bought the help of some allopathic doctors. After experiencing these complications from a cataract surgery, they would want to enjoy the benefits of homeopathy. These persons realized it is the best way to treat cataracts.

Homeopathy for treating a cataract or certain complications caused by surgery is based on the principle of stimulating the healing of the body to achieve the cure desired. There are different homeopathic remedies used for cataracts. The following are a few of them: Causticum, Calcarea Phosphorica and Sepia Officinalis. Homeopathy is a non-invasive and effective treatment without the undesirable complications of a cataract surgery.

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Ben Franklin and Bifocals

Most people know Benjamin Franklin as “The First American,” a noted diplomat and scientist, as well as for his important work with electricity. But did you know that this Founding Father, known for his signature glasses, is credited with the invention of bifocals?

Necessity Breeds Invention

Ben Franklin invented bifocal eyeglasses in 1784 for his own use, as he was having trouble seeing both up-close and at greater distances. Thus, rather than constantly changing glasses throughout the day, he created a method for placing differently-calibrated lenses into the same frame. His new “double perspectives” had pairs of half-lenses arranged in a top-bottom configuration. More convex lenses for nearby viewing were at the bottom and flatter lenses for distance sight were on top. Franklin commented in correspondence that now resides in the Library of Congress, that all he had to do was but move his eyes up or down, and the proper glass was always ready!

Bifocals Over Time

The technology for eyewear has come a long way in the past two-hundred years. The initial design – with the line across the width of the glass – was first called the Franklin bifocal and later the Executive bifocal. In later years, smaller round lens segments called “segs” were created for near vision, and scientists developed techniques to fuse the segs into the larger distance lens. More recently, D-shaped near segments – also known as “flat-top” or “straight-top” bifocals – became a popular alternative. There are new techniques that reduce eye strain when moving back and forth between distances throughout the day, and research is ongoing for lenses that use liquid crystal layers between glass substrates to selectively adjust the optical power as needed!

Right for You

Both bi- and trifocals exist to suit your exact vision condition. Presbyopia, or the loss of ability to focus especially on close up objects, can cause eyestrain and headache. This can often occur after age 50, when one's depth of focus can be decreed. These types of eyewear are often given to people with that diagnosis in order to restore reading vision. Trifocals can assist people who have difficulty seeing at arm's length in addition to reading and farther distances. Furthermore, progressive lenses provide multifocal correction with no apparent line to reveal any difference from single-lens glasses. There is plenty of variety in styles and frames to fit your budget and fashion concerns. With hundreds of styles and many types of transitions, you can find a pair to match your needs perfectly!

Your local eye doctor can make a proper diagnosis and prescription with a quick and painless visit. If you are having difficulty seeing at various distances, or even if it's just been a while since your last exam, call up your local eye doctor and set up an exam. Adults should have their eyes examined a minimum of once every two years, and senior citizens should be sure to have their eyes checked annually.

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What Are Your Eyes Telling You?

For me, it began when my mother asked me, “Who is that standing at the corner?” I joined her at the window of our house and looked. I could not tell who it was. I squinted. “Oh, it's Bobby!” I said. Then I turned toward my mother. She was looking at me with a concern expression. Yes, it turned out I was near-sighted and needed eyeglasses to correct my vision.

At age twelve, therefore, I began my lifelong relationship with my eyesight and my eyeglasses. I have gone from hating the glasses to hiding them to accepting them to, finally, appreciating their fashion component. This has led to my interest in how our eyes work and what issues can be addressed without lens technology.

Eye problems are common now and have been for many years. Rarely does an ophthalmologist or optometrist advise us to “Listen to your eyes.” Yet he or she should. Why should we listen to our eyes?

Well, if your eyes are training and tense, they are being damaged. If your arm hurt or felt too strained, you would stop using it or take a break, would not you? Your eyes should be treated the same way.

Your eyes have many small muscles that shorten or lengthen the lens in your eyes so you can see clearly. Take a moment and consider your eyes right this minute. Are they training to read the words on the page? Are your eyes flowing over the words or are they staring hard at each word? Are you smiling, frowning, or concentrating too hard? If you said yes to any of those, your eye muscles will benefit from your relaxing them as soon as possible.

Your thoughts can actually affect your vision. Research has shown that while thinking pleasant, happy thoughts, one's eyes are more relaxed. Relaxed eyes have better focus and make smooth movements. Negative thoughts, as you might suspect, cause the eyes to strain. Strained eyes tend to stare and the movements of the eye are jerky causing your eyes to ache or feel fatigued.

Your eyes do not lie. If your eyes hurt or you feel tension behind them, they are simply trying to tell you to relax. Feel a headache coming on near the eyes or behind them? You are training your eyes and need to relax.

So, how do you “relax your eyes?” It is fast (about 15-20 minutes) and easy. Remember that the payoff for taking the time is relaxed eyes that focus better and enable you to better comprehend what you read or look at.

First, close your eyes and concentrate on the darkness. Let the negative things that stress you out just fade away. Think of positive, pleasant things. I like to imagine myself relaxing under a tree on a beach, looking at the ocean. I have a frosty, sparkling drink on the table next to me. My legs are stretched out and my feet are on the extended beach chair. Perhaps I see dolphins leap in the water. Perhaps I notice a breeze caressing my face.

Whatever your choice of pleasant scene, keep your thoughts focused on all the positive aspects of this image for the entire 15 minutes. When you open your eyes, you should feel more relaxed and the eyes more focused.

Again, listen to what your eyes are telling you. Pay attention to them and consciously relax them when tired or stressed. Let them rest. Paying attention to the messages from your eyes will help your vision for many years.

I wish I knew this when I was twelve! But I'm making up for lost time and enjoying the experience of rested eyes.

For other eye exercises or ways to move toward vision without glasses, click here to access two blog posts I've written on this topic: http://www.twosmartchicks.com

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