Top 10 Reasons People Wear Glasses

10. They like being called four-eyes

There are those masochists who just love to be insulted and there are sadistic people who love hurling insults. Hopefully, most adults are past the name-calling stage but do not count on it.

9. Security blanket

Glasses serve as a security blanket. Some people feel naked without them, even if the glasses are not used for their intended purpose, which is to help one see better. The idea is that you can actually hide behind spectacles. In this case, the bigger the glasses, the better. Especially if you really ARE naked.

8. To hide yourself

If a person has been on a crying jag and her eyes are a puffy, swollen mess as a result, glasses, sunglasses, in particular, are necessary. Big, dark glasses are de riguer, especially if appearing in court and charged with a crime (which the defendant did not commit, of course) or when attending a high profile funeral, particularly for those stalked by the paparazzi. No one wants her grief splattered face on the front page of Star Magazine.

7. Appear intelligent

To make them appear more intelligent. How many actors have resorted to shoving a pair of glasses on their face so that they could play a brainy character? Sometimes wearing glasses for this purpose works, sometimes it does not. Frankly, there are those of us who just want to yank off those spectacles and shout: We know who you are! You are no rocket scientist and not even those specs are going to convince the viewing audience that you can play Madame Curie! It is going to take a lot more than a pair of eye glasses to make YOU convincing in this role!

6. Super hero syndrome



To disguise super hero status. Consider the late Christopher Reeve and his portrayal of Clark Kent in the Superman movie. No one can get past those in-your-face newspaper reporter glasses. His predecessor, George Reeves, the star of the earlier television version of Superman, sported identical glasses when he was playing Clark Kent but, of course, both actors yanked off those specs when they transformed into the super hero. Super heroes do not need glasses.

5. To hide your eyes

To hide being hung over; a botched eye job; a wicked encounter with Botox or a fist. This requires tinted eye glasses; the darker the better.

4. Aura of mystery

Some opt to wear dark glasses even when it is dark or when inside because they think it makes them look mysterious. Who is that behind those Foster Grants? Does anyone really care? Wearing sunglasses inside or at night is just plain stupid.

3. Fashion statement
Eyeglasses as a fashion statement. They think it makes them look cool. They want to look just like Sarah Palin. Is that cool?

2. On the run

When on the run, the first order of business for those in the Witness Protection program, who obviously do not want to be recognized, is a hair dye job and a pair of eyeglasses. The best kind of glasses for this purpose has a fake, bulbous W.C. Fields-like nose and Groucho Marx moustache attached. That will surely fool the Mafia or whoever is hot on your trail.

1. So they can see



Drumroll. Of course. You thought I was going to write anything else? First and foremost, people wear glasses so they can see. Nothing worse than walking into a door or taking your husbands Viagra instead of your flatulence medicine because you are so blind without your glasses that you cannot see an inch in front of your face.

When a person is afflicted with an astigmatism this means that the cornea is curved abnormally, which results in vision that is out of focus. No one knows for sure why astigmatism occurs but is it generally present at birth and occurs in tandem with either farsightedness or nearsightedness.

Google Glass : Part2

Shifting sands

Every day new activities are transferred from the physical arena to the digital one. The death of the record shop has switched the experience of browsing the aisles to browsing the iTunes library. The workplace, the one space where even the shyest among us were forced to socialise, is often now a laptop on the kitchen table. There’s even been a radical change in the way we fall in love – not just through online dating agencies but via flirty Facebook posts and Tweets.

If we really put our minds to it, we could do almost everything without face-to-face contact with other humans.

For a growing number of people, this shift represents freedom – freedom not to go to work every day, and who can be bothered to get in the car to go to the supermarket anyway? But in return we seem to be handing more and more control over to the technology companies who facilitate these changes.

Rather than chat through our ideas with a colleague over the coffee machine, a great many of us now think in front of the computer – or rather we now think with the help of the computer. Type any word into Google – however simple, however vague – and Google will offer a whole list of potential thoughts you might be having. Some turn out to be better than the original thought.

But even if we do make it to our original destination, the list in front of us contains the information the Google algorithm throws up: it has already selected and privileged certain streams of knowledge for us; it has decided where our thinking should go.

Whereas Facebook offers more interaction with the thoughts of actual human beings, Google has encouraged us to edit ourselves, and our own thinking.

Google Glass takes all this one step further – in the future, sightings of friends will be mediated by the device, what we know about them will be delivered to us by Google, and even questions of where we physically exist will be given to us by the algorithm.

Users barely have to think at all – which doesn’t seem completely out of step with what top people at Google have told the world is their aim. Sounds a little like sci-fi? At least sci-fi usually includes a small band of dissenters, but all Google’s latest announcement seems to inspire is consumer enthusiasm.

And as it’s coming from Google, we can be sure the company’s competitors are working on their own designs already.

Google Glass : Part1

The Google Glass “glasses”, if connected to Wi-Fi, show information on a screen about what the user is seeing – based on Google search data – such as location and recognisable people and brands. While Google Glass is still in development, Google is expected to begin shipping the device to enthusiasts within the year.

The idea of wearing glasses that mediate between the user and reality might still seem a little far-fetched, a little sci-fi – maybe something to have a few minutes of fun with. But bearing in mind that the computer in these devices can take photos and video of what, and who, is being seen, and share it immediately for further online interaction, it seems that’s not what Google has in mind.

These devices are meant to be worn for substantial periods of time. They perform the kinds of functions – albeit in a more obtrusive way – that are currently taken care of by smartphones and tablets, the technologies we are increasingly tethered to as we live our daily lives. To simplify things, this time we’ll wear the device on our faces.

If it’s not difficult to see Google Glass as a simple continuation of the relationship humans have with technology, it’s even easier to see some of the problems being exacerbated.

Previous technophile turned techno-pessimist MIT professorSherry Turkle writes in her latest book about the way users of mobile devices engage in compulsive behaviour – which she describes as being “always on” – cradling their technologies in bed in the middle of a sleepless night, checking emails quickly in the middle of reading a book to a toddler, logging on to Facebook just as the lights have gone down in the cinema.

In such cases, genuine emotional engagement with our physical reality – and other human beings – is sacrificed for online performance and interaction.

Famous Glasses Brands : Part5 Calvin Klein, Ray Ban

CALVIN KLEIN GLASSES

Calvin Klein glasses manage to surprise and delight in every new season. The recent Calvin Klein Eyeglasses collection, at first glance, seems conventional. But when you look closer at the styling, detailing, and craftsmanship, you see that the quality inherent in the Calvin Klein wardrobe is still here in the Calvin Klein eyewear collection.

The range of eyewear still favors metals, full metals, and metal fronts with plastic temples. There are a few full plastic frames, like the Calvin Klein CK7113 glasses model and the CK5711A glasses frame, both of which offer the sharp lines and rectangularity favored by men and women looking to accentuate the cut of their overall fashion package. The CK5691 glassesand CK5699 glasses models are similar, but offer some additional colors.

The vast majority of the collection, however, is in the thin metals like Calvin Klein CK530 and CK531. The occasional rimless like CK 7276 still retains the sharp corners and straight lines, softened only by the plastic temples. The CK7504 and CK7506 models follow this trend as well.

Calvin Klein glasses exude vitality, wit and humor, an invitation to kick up your heels--styles that suitable for any venue and yet maintain their individuality and their humor are the main stays of the Calvin Klein collection. Calvin Klein Incorporated was founded in 1968 by Calvin Klein. The company is headquartered in Midtown Manhattan, New York City and currently owned by Phillips-Van Heusen.


RAY BAN GLASSES

Ray Ban glasses. For those who have worn Ray Ban, and nearly everyone has, Ray-Ban glasses offer the same benchmarks of quality. Ray-Ban eyeglasses have the style, materials, craftsmanship, and comfort that we all have come to expect. You will find a choice of materials in traditional shapes, full frame and half frame, oval and rectangular. With Ray Ban glasses you cannot go wrong.


The Ray Ban eyeglasses line is relatively new, compared to the Ray Ban Sunglasses collection, having been introduced in the last 10 years. Most of the eyeglasses line follows the same classic lines as the sunglasses collection, with Wayfarer, Ronsir, and even aviator styles like the Ray Ban RX6049 eyeglasses frame, and theRay Ban RX8403 eyeglasses frame.


The Ray Ban eyeglasses collection includes a variety of styles in plastics and metals. Most frames have a rectangular shape variation. The most popular Ray Ban glasses frame by far is the RX5121 Wayfarer glasses frame. It has the same shape as the famous Wayfarer Sunglasses, but without the lenses, and so it is less expensive and will accomodate all types of lenses and prescriptions.

Famous Glasses Brands : Part4 Kate Spade, Vogue, Alain Mikli

KATE SPADE GLASSES



Kate Spade glasses show the energy, flair and casual vigor of the Kate Spade brand. The best of both influences are combined to form the inimitable. Kate Spade glasses are sure to appeal to the diverse life styles of many.

While growing up in Kansas City, Missouri, Katherine Noel Brosnahan, now Kate Spade, was both the epitome and antithesis of the all-american girl. There was always something charmingly familiar yet wonderfully original about Kate. Her fresh sense of style and singular personality reflect a keen sense of wit, propriety, and a no-nonsense approach to life. Kate has spent most of her professional career in the accessories business, bringing recently Kate Spade glasses and Kate Spade eyeglasses to the fashion world.

If you like Kate Spade glasses, here are some other top eyeglasses brands that you may also enjoy: Guess eyeglasses, Nike eyeglasses,Silhouette eyeglasses, Ralph Lauren eyeglasses, and Polo eyeglasses.


VOGUE GLASSES



Vogue glasses. It is not uncommon to find fashion designers manufacturing accessories to complete their lines. Few, however, manage to capture the spirit of their work as Vogue eyeglasses do. Vogue eyeglasses exude vitality, wit and humor, an invitation to kick up your heels--styles that suitable for any venue and yet maintain their individuality and their humor are the main stays of the Vogue glasses collection.


ALAIN MIKLI GLASSES



Alain Mikli Glasses. With the Alain Mikli eyeglasses, this world renowned designer has shaken up the fashion industry’s optical market. The Alain Mikli eyeglasses eyewear collection is aesthetic and functional, creative and technically advanced. Alain Mikli glasses eyewear is seen in the pages of the world’s most respected fashion magazines as well as on the chic everywhere. Perhaps no other designer has created eyeglasses that are as distinctive in line, color and form as Alain Mikli. His collection is high fashion, seen on models and in magazines around the world.

Alain Mikli: Another View of the Optical Trade
Finding the eyeglasses of the 1970s neither fun nor sincere, neither elegant nor casual, Alain Mikli launched his own brand in 1978. Devotee of freedom and non-conformity, he “sculpted” matter in space and invented a new philosophy for optics: to each his own…pair of glasses, in colors to match his personality. This subtle and detailed complicity with the wearer makes each Alain Mikli model a unique creation.

We can order any frame model available in the U.S. Check the Alain Mikli website to see the entire collection. Also if you're looking for frames from the same designer try the Mikli brand.

If you like Alain Mikli glasses, here are some other top eyeglasses brands that you may also enjoy: Dolce and Gabbana glasses, Gucci glasses,Versace glasses, Prada glasses, Giorgio Armani glasses, and Emporio Armani glasses.

Famous Glasses Brands : Part3 Polo, Guess, Nike

POLO GLASSES by Ralph Lauren

Even by looking at Polo Ralph Lauren eyeglasses, one can feel the sophistication and elegance within the frames. It is not a mistake that the brand Polo Ralph Lauren is recognized throughout the world.

The charm and personality of the brand is translated into everything that this leading designer produces. Polo Ralph Lauren Eyeglasses are no exception. The collections presented by the brand show the flair, energy, and casual vigor of the Polo Ralph Lauren brand. Additionally, the technology used during production, combined with the newest trends as well as the best metals, make Polo glasses the best option for casual and sophisticated consumers.

With the Polo collections, the Polo PH 1075 model is casual and elegant, combining the best elements of the brand. This model presents the outstanding manufacturing capabilities of Italian craftsmanship with high quality metal in a half rim design. Customers can choose among shiny black, dark grey and gun metal on this sober and relaxed proposition. The Polo PH 1102model is also a unique model, but it comes in a full rim and with a sophisticated thin body.

Ralph Lauren Eyeglasses

When talking about designer eyeglasses, Ralph Lauren is a name that will strike in the first few seconds. Even though the brand has been around for quite long, it started gaining consumer attention only recently. Eyeglasses from Ralph Lauren are associated with energy, dynamism and flair. These glasses represent simplicity in style.

These glasses have a huge fan following in United States. Be it a 14 year old or a 40 year old, both wear these eyeglasses with equal aplomb. These glasses also have an accessibility advantage over all the other brands as the number of Ralph Lauren stores is much higher comparatively. Moreover, the demand for Ralph Lauren frames has been strong since the company entered the markets.

The media too, loves Ralph Lauren glasses and seems to be covering it everywhere. Media people have themselves pointed out their lack of surety about how a huge following Ralph Lauren started. It is a fact known and accepted that the name had, at one time, stood nowhere in comparison toGucci or Ray Ban.


GUESS GLASSES

Guess glasses, designed by Maurice Marciano, the French designer, combines his love of the American West with a European sensibility. Consequently the energy, flair and casual vigor of Guess glasses is apparent. The best of both influences are combined to form the inimitable -- Guess glasses. These frames are sure to appeal to the diverse life styles of our customers.


NIKE GLASSES



Gaining recognition in our world is not an easy task, and very few companies have been able to succeed like Nike Eyewear has.

The companies and individuals who have gained recognition through the years have done so by sharing a unique vision. In this world of achievers, even within those that have done well, none have achieved the success of Nike. Nike is arguably the most recognized brand in sportswear. The products designed and manufactured by Nike Eyewear are an example of what can result from hard work.

Year after Year Nike Eyewear releases a thrilling collections. An example of one of the models is the NIKE 4200 model, which is a very sporty design created for sports fanatics and for athletes needing a sports related alternative in the eyewear industry. This model comes in titanium, which provides durability and comfort. The color options of the NIKE 4200 model are another asset of this model. The frames comes in cargo, union grey, and walnut colors. This model features a full rim in a strong titanium frame. Eyewear customers would not be disappointed with the stylish options offerred by Nike.

Famous Glasses Brands : Part2 Prada, Silhouette, Fendi

PRADA GLASSES

The devil wears them, we wear them, everyone wants them. Prada eyeglasses define status. Just as their clothing has always pushed the envelope of fashion, Prada glasses do the same. They take the wearer to an entirely different level of vision style. Careful observation of and curiosity about the world, society, and culture are at the core of Prada’s creativity and modernity. Take a look at the sleek lines and bold colors. Whether you are going for a new look like the Prada 08IV glasses, or a classic redo such as the Prada 50IV glasses, Prada eyeglasses are universally appealing. Character and intelligence are the hallmarks of this brand. The strength of concept, bold execution and daring use of color and materials continue to earn the Prada name. Prada eyeglasses have introduced a new way to create a natural, almost ‘fashionless’ fashion. The Prada line is timeless, full of expression and downright out of some people’s leagues. How will you feel when you wear a pair of Prada glasses? See for yourself.


SILHOUETTE GLASSES



Silhouette glasses have earned a reputation for innovation. Here fashion and function come together with ultra-light titanium eyeglasses frames, using exclusive hingeless temples and polycarbonate lenses. Silhouette eyeglasses in the Silhouette Titan Minimal Art Collection were chosen by NASA for their unparalleled comfort, outstanding performance and minimal weight.

Minimal weight, hinge less construction and the marriage of form, function and fashion are the earmarks of the Silhouette sunglasses line. By melding timeless frame style with a variety of lens shapes and breakthrough technology, this collection captures the sleek, dynamic and modern attitudes of today. New fashion colors throughout the collection include Blush, Amethyst, Bordeaux and Teal.

Founded in 1964 by Arnold and Anneliese Schmied in Linz, Austria, Silhouette Optical, a subsidiary of Silhouette International, has long been in the forefront of fashion eyewear. But it was the introduction of Minimal Art in 1992, a rimless titanium frame without hinges, followed by the debut of Titan Minimal art, a screwless, hingeless frame weighing only 1.8 grams debuting in 1999, that changed the course of the company... and the course of rimless eyewear.

Like many major events, the impact of Titan Minimal Art was unplanned and unanticipated. “It was all very simple,” says Arnold Schmied, Silhouette executive director and a son of the founders. “We had done rimless eyewear before, a collection in 1983, and decided we wanted to do another rimless design. The response we received came as a total surprise to us. Never before in our company history had we had so much positive feedback from our reps, our customers and the end consumers as the result of one eyewear design.”


FENDI GLASSES



Fendi glasses, made by Marchon Eyewear, have long set the style for fashion and elegance in the eyewear world. Fendi glasses style originates in Italy, and it is known for its elegance and conservative flair. Currently, Fendi has over 160 boutiques in some 25 countries around the world. Fendi glasses.

Brand names don’t simply signify the work of a designer. Brands carry an aura, connoting a particular lifestyle and status. Chances are, if you own a Fendi bag, you’re going to be wearing Fendi eyeglasses or sunglasses as well, and you are living life in a celebrative way. Fendi’s glasses style originates in Italy, and it is known for its elegance and conservative flair. Currently, Fendi has over 160 boutiques in some 25 countries around the world. Fendi eyeglasses are all examples of the wide range of fashion the brand covers.

Famous Glasses Brands : Part1 Gucci, Armani

GUCCI GLASSES

Gucci glasses are the perfect accompaniment to a Gucci wardrobe. The collection shows a meticulous detail and used extremely high quality materials. Due to a growing demand from men, Gucci eyewear has responded with many styles for men and for both men and women.

The Gucci eyeglasses collection at this point in time is primarily composed of plastic frames, or metal fronts with plastic temples. The use of plastics offers Gucci designers more ability to infuse color and shape into your persona, because plastics are generally thicker and more visible than the design palette offered through metal frames. Frames shapes tend toward the rectanglular – some with hardened corners, some with rounded corners – as this angularity is repeated in other Gucci fashions. Straighter lines and sharper corners provide a more articulated face shape, which adds to feelings of intelligence, importance, and power.

For example, Gucci 3202 glasses are all plastic, made of the highest quality Italian Mazzuchelli zyl. The frame shape is basically rectangular, but with softened corners. The red color is higher in tone than burgundy, but lacks the fiery irresponsibility of a brighter red. Color choices available in plastic allows for this kind of subtlety, a subtlety for which Gucci has become famous.

And then there is the Gucci 2910 glasses frame, which uses plastic temples and a metal frame front. Again, this offers a wide palette for the famous Gucci logo on the side, while providing a more laid back and sophisticated look on the front. The same style is evident in the Gucci 1914 glasses model, the Gucci 1930 eyeglasses frame, and the Gucci 1938 eyeglass frame.

Gucci began his small luggage and leather goods business in Florence, Italy in 1921. The brand grew out of its exceptional creativity, introducing timeless standards such as the “Bamboo Bag”, the trademark green-red-green web, and the legendary double “G” logo.


GIORGIO ARMANI GLASSES



Giorgio Armani Eyewear is the embodiment of elegance into simplicity. For those who know and believe in the brand as an icon of fashion, the Giorgio Armani eyewear line presents a loyal representation of classical looks.

One should not forget that Giorgio Armani, as brand, is characterized by the quality of its products and the uniqueness of its designs. It is produced by the world leader in eyeglass frame manufacturing, Luxottica. Designs such as the GA787 model are true representations of style and elegance. This model has Italian plastic and features a unique rectangular shape in a full rim. The 787 model comes in different colors such as Blue Horn, Havana Crystal, Black Crystal and Red Horn.

The Giorgio Armani 502 eyeglasses model is characterized by it visible Giorgio Armani logo on the temples and by its Italian craftsmanship. In a plastic material, this model presents a full rim in unique colors such as Havana and Gray. Both models present style and fashion in a modest, yet unique way, resembling every aspect of the Giorgio Armani brand.


EMPORIO ARMANI GLASSES



Emporio Armani glasses are synonymous with exceptional textiles, design, and fabrication—a true icon in menswear and now in eyeglasses. The Emporio Armani glasses collections awaken the Emporio Armani man to a wardrobe full of color and innovative fabrics. The feel is casual with a subtle flair of sophistication. The Emporio Armani eyeglasses collection complements this style with characteristic agility and subtlety.

Types of Lens : Part2

What Are Multifocal Eyeglass Lenses?

People who have more than one vision problem often need eyeglasses with multifocal lenses. Multifocal lenses, such as bifocals and trifocals, are eyeglass lenses that contain two or more vision-correcting prescriptions. In years past, you could spot a multifocal lens by the line separating the two sections. But today, multifocal lenses, called progressive lenses, can be made to look seamlessly attractive. No one but you and your doctor will ever know!

Bifocals. Bifocals are the most common type of multifocal lens. The eyeglass lens is split into two sections; the upper part is for distance vision and the lower part for near vision. They are usually prescribed for people over the age of 40 whose focusing ability has declined due to presbyopia. Presbyopia is an age-related change that affects the natural lens in the eye.

Trifocals. Trifocals are simply bifocals with a third section used for people who need help seeing objects that are within an arm's reach. This additional segment is above the bifocal portion of the lens and is used for viewing things in the intermediate zone; for example, looking at a computer screen.

If you have questions about which eyeglass lens is right for you, talk to your eye doctor. He or she can help you choose the lens that best fits your lifestyle and vision needs.

Eyeglass Lens Coatings

There are almost as many eyeglass lens coatings as there are types of lenses. They include:

Anti-reflective coating. If glare becomes a problem, consider an anti-reflective coating applied to new eyeglasses. Anti-reflective coating will reduce reflections, decrease halos around light, and create a nicer cosmetic appearance.

Scratch-resistant coating and ultraviolet coating. Most eyeglass lenses today have built-in scratch resistant coatings and ultraviolet protection.

Tinted lenses. Sometimes a light or dark hint of color on the eyeglass lens can be beneficial to aid in vision. For example, a yellow tint may increase contrast and a gray tint may not alter color perception with sunglasses. A light tint can also hide the signs of aging around the eyes.

Mirror coatings. If you are looking for a purely cosmetic lens that allows the eyes to be hidden from view, then this is the coating for you. Mirror coatings come in a variety of colors such as silver, gold, and blue.

How Should You Care for Your Eyeglasses?

Always store eyeglasses in a clean, dry place away from potential damage.
Clean your eyeglasses with water and a non-lint cloth, as necessary, to keep them spot-free and prevent distorted vision.
See your doctor annually to check your eyeglass prescription.

While eyeglasses can correct some common vision problems, it is important to have routine eye exams to keep the eyes healthy.

Types of Lens : Part1

Eyeglasses today are fashion accessories, as stylish as purses and belts. In fact, you'll find familiar names -- Calvin Klein and Gucci to name just two -- on your choice of frames these days. So don't fret if contact lenses irritate your eyes. Instead, scope out the latest fashion frames to give your face a fresh look.

What Types of Eyeglass Lenses Are Available?

As technology advances so, too, do eyeglass lenses. In the past, eyeglass lenses were made exclusively of glass. Today, most eyeglasses are made of high-tech plastics. These new lenses are lighter, do not break as easily as glass lenses, and can be treated with a filter to shield your eyes from damaging ultraviolet light.

The following modern eyeglass lenses are lighter, thinner, and more scratch-resistant than glass lenses or the older, common plastic lenses.

Polycarbonate lenses. These eyeglass lenses are impact-resistant and are a good choice for people who regularly participate in sporting activities, work in a job environment in which their eyeglasses may be easily scratched or broken, and for children who may easily drop and scratch their eyeglasses. Polycarbonate lenses also provide ultraviolet protection.

Trivex lenses. These lenses are made from a newer plastic with similar characteristics of polycarbonate lenses. It is lightweight, thin, and impact-resistant and may result in better vision correction than the polycarbonate lenses for some people.

High index plastic lenses. Designed for people who require strong prescriptions, these eyeglass lenses are lighter and thinner than the standard, thick "coke bottle" lenses that may otherwise be needed.

Aspheric lenses. These eyeglass lenses are unlike typical lenses, which are spherical in shape. Aspheric lenses are made up of differing degrees of curvature over its surface, which allows the lens to be thinner and flatter than other lenses. This also creates an eyeglass lens with a much larger usable portion than the standard lens.

Photochromic lenses. Made from either glass or plastic, these eyeglasses change from clear to tinted when exposed to sunlight. This eliminates the need for prescription sunglasses. These eyeglass lenses may not darken in a car because the windshield could block the ultraviolet rays from the sun.

Polarized sunglasses. Light reflected from water or a flat surface can cause unwanted glare. Polarized lenses reduce glare and are useful for sports and driving. These lenses may cause the liquid crystal displays on the dashboard of cars to appear invisible.

The type of vision problem that you have determines the shape of the eyeglass lens. For example, a lens that is concave, or curves inward, is used to correct nearsightedness, while a lens that is convex, or curves outward, is used to correct farsightedness. To correct astigmatism, which is caused by distortions in the shape of the cornea, a cylinder shaped lens is frequently used. Simply put, the eyeglass lens is a tool you use to focus light appropriately onto your retina.