Carrots really do help you see in the dark; beta-carotene-rich foods help prevent a variety of eye ailments

Your mother always told you eating carrots would help you see better, but did she ever tell you why? No, this wasn't just a trick to get you to eat your vegetables. It turns out carrots really do give your eyes a boost because they contain beta-carotene, which the body is able to convert into vitamin A, an essential vitamin for healthy vision.

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Vitamin A, also called retinol, is key in fighting vision problems like cataracts, glaucoma, macular degeneration and night blindness. It is found primarily in fish oils, liver, eggs and fortified dairy products. However, if you don't eat animal products, you can make sure you are getting plenty of vitamin A by eating fruits and vegetables that contain carotenoids like beta-carotene, which the body then converts to useful vitamin A, called "provitamin A."

Bright yellow or orange fruits like carrots, apricots and sweet potatoes are good sources of beta-carotene, while green leafy vegetables, especially broccoli, are rich in the carotenoids lutein and zeaxanthin. Unfortunately, some people don't get enough of these foods, and therefore they are lacking in a vitamin essential to their sight. As Gary Null writes in "Complete Guide to Health Nutrition," "The logic is obvious: Without vitamin A, proper vision is impossible."

Vision loss is one of the most feared health conditions, but sufficient vitamin A intake may help ease those fears. Vitamin A helps safeguard sight by protecting against free radical damage that can lead to vision problems like cataracts, macular degeneration and night blindness. While research has linked vitamin A deficiency to a variety of vision problems, one of the first signs that your eyes are not getting enough vitamin A may be episodes of night blindness. Vitamin A is especially important to the rods of the eye, which allow sight in dim light.

In the book "Smart Medicine for Healthier Living," authors Janet Zand, Allan N. Spreen and James B. LaValle write, "The rods are cylindrical-shaped cells on the surface of the retina. They contain a special chemical called visual purple, or rhodopsin, that is responsible for vision in low-light conditions. Rhodopsin is formed from protein and retinol, a form of vitamin A ... if you lack sufficient vitamin A, the production of rhodopsin suffers, leading to increased difficulty seeing in dim light." Therefore, if you are having unusual difficulty driving at night or finding your seat in a dark movie theater, you may want to consider adding some more vitamin A to your diet. The authors of "Smart Medicine for Healthier Living" go on to say that if vitamin A deficiency is severe enough, it could also lead to abnormally dry eyes and even the appearance of white foamy patches called Bitot's spots on the eye's surface.

Cataracts is another common vision concern, especially for elderly patients, that can be prevented with proper nutrition. According to "The Folk Remedy Encyclopedia," cataracts strikes nearly everyone by the age of 75, but this is another problem that can be prevented by adding more vitamin A to the diet. Alan H. Pressman writes in "The GSH Phenomenon" that recent studies have shown that people with a higher dietary intake of mixed carotenes – the vitamin A precursors – along with higher intake of vitamins E and C have significantly lower rates of cataracts. Vitamin A is also particularly important to the elderly, who often don't get enough nutrient-rich foods, because the vitamin can combat weakened immune system function or dry skin problems in older patients.

Although vitamin A is especially vital to properly functioning eyes, it offers many other health benefits as well. It helps fight free radical damage that results from tobacco and other environmental pollutants. Vitamin A is essential for immune system function and helps build and maintain strong, healthy bones. It also regulates cell development and safeguards reproductive health. Vitamin A can also be useful topically to treat skin infections, psoriasis and acne sores. In fact, many acne medications now contain vitamin A as their active ingredient. Vitamin A substances also seem to protect against cancer-causing agents, according to Sheldon Saul Hendler's "Vitamin And Mineral Encyclopedia."

In "Treating Cancer with Herbs," Michael Tierra ND recommends the average person get about 10,000 IU (international units) of vitamin A daily. However, doses higher than that should only be used under medical supervision since too much vitamin A, a fat-soluble vitamin that is primarily stored in the liver, can cause liver toxicity. For that reason, Tierra recommends pregnant women should ingest no more than 8,000 IUs of the vitamin a day.

The health benefits of vitamin A are plentiful, especially in terms of visual health, so if you notice you're having a difficult time seeing at night, you may want to add some yellow and orange veggies to your diet. If it is important to you to protect your vision – and to most of us it is – try safeguarding your sight by eating right. In other words, it's time you listen to your mother, and start eating those carrots.

Eyewear That Protects Your Child's Eyes

Each year, thousands of eye injuries could be prevented if more people would wear safety glasses or protective eyewear.

Eye injuries happen all too frequently when adults and kids are enjoying sports or working around the home. Children are especially vulnerable to eye injuries because they often don't consider that their eyes, and possibly a lifetime of healthy vision, are at stake.

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According to Prevent Blindness America, approximately 40,000 sports-related eye injuries each year in the United States are severe enough to require emergency room care — that's one every 13 minutes!

And experts agree that 90 percent of these injuries could easily be prevented by wearing protective eyewear. For children, eye injuries happen mainly during sports and other active play. Kids should wear eye protection for the following sports and recreational activities:

baseball
softball
racquetball
tennis
badminton



soccer
ice hockey
paintball
street hockey
basketball



lacrosse
archery
fencing
boxing
karate

Paintball games also can be dangerous and are a growing cause of eye injuries among children and young adults. [Read more about paintball eye injuries.]

Lead by Example: Wear Safety Glasses and Sports Eyewear

Perhaps the best way to encourage your kids to wear protective eyewear is to lead by example and wear it yourself.

Invest in modern wraparound safety glasses for yourself and your children, and put on this eyewear whenever you play sports or work with tools or power equipment. Insist that your kids follow your example.
Let Your Children Choose Their Protective Eyewear

When shopping for safety glasses and protective eyewear, let your child choose the style he or she prefers (as long as it provides the eye protection they need).

Seek the advice of a professional optician to make sure the eyewear fits well and provides the amount of protection needed for the sports and activities your child participates in.

Protective eyewear for sports like baseball, hockey and lacrosse should include a polycarbonate face mask or wire shield.

Eyewear for other sports — including basketball, soccer, hockey and tennis — should feature wraparound polycarbonate lenses or side shields. [Read about fitting sports eyewear to your child's face.]

Protective eyewear can be purchased with prescription lenses from an eye care practitioner so children requiring a correction for nearsightedness, farsightedness or astigmatism can see clearly during their favorite sports without risk of eye injuries.
Trivex and polycarbonate lenses are considerably more shatter-resistant than standard plastic lenses, making them the best choice for safety and sports eyewear. In addition to providing superior eye protection, these lenses also are lighter than plastic lenses, for greater comfort.

Protective eyewear also is essential for skiing and other outdoor sports. Ultraviolet (UV) rays and excessive sunlight bouncing off snow and ice can lead to a painful sunburn of the eyes called photokeratitis. Long-term exposure to UV rays has been associated with cataracts and macular degeneration later in life.

Keeping an Eye on Users' Personal Tech

For years, it was pretty easy for IT professionals to safely ignore what went on in the consumer market. After all, in the not-too-distant past, a business tool like your telephone had nothing to do with your camera, and your PC wasn't even in the same room as your music player. Your PC, in fact, probably stayed in the office, and despite the moniker, there was very little personal stuff on your personal computer.

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That's all changed. What's more, it seems that consumer personal technology is continuing to explode, even as business IT has plateaued. When personal technology outpaces business technology, there is inevitably a commingling of business and personal data, as business users put their whizzy personal toys to business uses.

This means that IT has to keep abreast of consumer-grade technologies. I'm not suggesting that you go out and buy iPods for everyone, but it is important to understand the implications of living in a world where personal technology is burgeoning.

One implication of the diffusion of technology both at home and at work is that the line between personal and professional life is increasingly blurred. People who buy tiny storage devices, iPods and PDAs are often also corporate users who don't see any reason not to put those consumer technologies to business uses, or at least to link them to corporate assets and networks. When that happens, what should IT departments do? They can't simply ignore or ban the consumer devices; they need to understand the technologies and then set policies accordingly.

For years, IT departments have generally recognized the need for policies regarding acceptable personal use of PCs, e-mail, instant messaging and other resources. Today, they need to create policies that address the issues that arise when business users bring their personal technologies into the corporate setting. When formulating such policies, the key is to focus on two types of risk that result from business data residing on personal devices:

Data security. The primary risk arises when sensitive data resides on devices that are small and easily hacked, lost or stolen. Devices that automatically synchronize to a remote third-party server add another potential area of insecurity for corporate data. And personal devices that connect over insecure wireless networks create yet another potential risk.

Infection potential. While the main risk today lies in data leaving the corporate network, a secondary risk lies in personal devices introducing threats to the network. PC-centric security vendors emphasize this risk. Although the threat of virus and Trojan-horse transmission is largely confined to insecure PCs or laptops today, handsets and PDAs themselves will likely also become targets of threats to IT networks in the future. IT needs to recognize this and make sure consumer-purchased technology is secured and free of viruses and Trojans.

IT should begin now to confront the issue of consumer technologies in the workplace and the desire of employees to access work-related data beyond the corporate network. The policies and technologies that enterprises deploy can take a variety of forms. For most scenarios, setting proper policies and keeping track of the latest consumer trends and devices (as opposed to prohibiting devices) will prove to be the most effective way to balance user desires with IT needs.

Cheap Varifocal Eyeglasses

When seeking on the web for affordable varifocal glasses you really should guarantee that whoever you conclude up choosing to get from, you obtain the correct sort of varifocals not only for your prescription but also your life style. There is an abundance of cheap varifocal eyeglasses staying sold on the net at the instant which have very poor aberration values and narrow corridors which restrict the total of visual area you expertise through the lens. There are also numerous on the internet merchants who supply pretty low-cost lenses at charges that are too superior to be legitimate and guess what?..they are! If you have been made use of to wearing premium varifocals from your native opticians then purchasing into the plan that a inexpensive unbranded pair will be suffice is a extremely poor move. Try out and make confident that you can talk to somebody from the on-line retailer you are seeking to get from, they will be additional than content to advise you on which lenses would be appropriate.

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So you see buying cheap varifocal eyeglasses on the net isn't an easy endeavor as there are lots of elements to consider in advance of you make your get. If you shop close to and get some time out to exploration the kind of varifocals that are specially designed for someone with your prescription and way of living then I am guaranteed that you can finish up not only saving quite a very few quid but also finish up with a pair of prescription glasses that will fulfill particularly what they are supposed to do.

Eyeglasses broadly employed by massive people are largely single focal, largely simply because these wearers only endure from myopia, hyperopia and other normal vision errors. Even so, some unfortunate people today may get much more than one eye problem at the exact time. In specific, when individuals are about forty, they are vulnerable to presbyopia and other eye troubles, with equally distant and close by vision signs or symptoms. For this, many multi-focal glasses can be employed, like bifocal eyeglasses, trifocal eyeglasses, and progressive eyeglasses and so on. Nevertheless, some of these multi-foal eyeglasses are not best as people today can ever before feel, like bifocals and trifocals, because of to their vision lines. Hence, no-line eyeglasses are commonly deemed as far better choices, for they have much more than two focal, but varifocals, and are generally referred to as varifocal glasses.


Strictly talking, bifocals and trifocals can not be called varifocal eye eyeglasses, in which no-line bifocals and no line trifocals are included. Hence, from a broader perspective, varifocal eye put on can be fallen into the following groups, namely, no line bifocals, no line trifocals, progressive glasses. Right here is some detailed facts about this eye use.

No line bifocal glasses are upgraded from ordinary bifocals, generally since numerous wearers are tormented by the vision lines in the lenses. Bifocals are mixed by two unique lenses, every of them are responsible for nearby vision and distant vision respectively. Having said that, the transition among the two lenses is as well radical and wearers will always endure a whole lot when they alter their visions. Or in some cases, wearers have to suffer from headache and dizziness.

Vitamin B-based treatment may permanently cure vision-robbing eye disease

(NaturalNews) One of 2,000 people in the U.S. is diagnosed each year with keratoconus, a vision-robbing disease usually first spotted during the teenage years. The cause isn't understood, but it is known to damage the collagen fibers that form the structure of the cornea (the outer surface of the eye). It's the cornea that allows the eye to focus properly. As keratoconus worsens over time, the cornea degenerates and becomes thinner, bulges outwards and makes clear vision impossible. Standard treatments for the disease in the U.S. include specialized eyeglasses, hard contact lenses, and implanted lenses. However, none of these can permanently correct keratoconus. Severe cases often require corneal transplants, which are not only expensive but may not always "take."

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But now there is a stunning development that may soon change this outlook for those suffering from this eye disease. At the 115th Annual Meeting of the American Academy of Ophthalmology currently underway in Orlando, Florida, scientist Paolo Vinciguerra, MD, just announced the results of a study showing a vitamin-based treatment that may permanently cure keratoconus in many people.

The new treatment, which has already proven effective in Europe and other parts of the world, is called collagen crosslinking and involves applying riboflavin (a B vitamin) to the cornea, which is then exposed to a specific form of ultraviolet light. The results? Collagen fibers regenerate with new bonds forming between them, increasing the strength and stiffness of the cornea.

B vitamin may be permanent cure
The treatment not only has a high success rate in restoring vision, but it also actually combats the causes of keratoconus -- the degeneration of collagen -- and reduces the odds the eye disease will ever return.

Results of Dr. Vinciguerra's clinical trial in Milan, Italy, showed the vitamin treatment improved vision in approximately 70 percent of patients. Dr. Vinciguerra's new study confirmed that adverse effects are rare and the procedure seems to be extraordinarily safe. The treatment is currently in clinical trials in the United States and is expected to receive FDA approval in 2012.

In an American Academy of Ophthalmology session entitled "Long-term Results of Corneal Crosslinking for Keratoconus", Dr. Vinciguerra described the treatment of more than 250 keratoconus patients who received the collagen crosslinking at his clinic. Sixty-eight percent of the 500 eyes treated gained significant visual acuity. What's more, these improvements remained stable at the end of a 3 year follow-up period.

"For many people with keratoconus, collagen crosslinking can provide a better and more permanent solution to their vision problems," Dr. Vinciguerra said in a media statement. "Given that no current treatment in use in the U.S. offers permanent correction, this effective option represents a significant advance for corneal medicine."

Designer Eye Glasses

Before buying expensive designer eye glasses, there are a few helpful terms and definitions a person should know. First, buying fancy name brand glasses is about the same as buying less expensive corrective eyewear. Materials, standards, and technology are basically the same. The only difference is that a person is paying a premium for the name on the frame. This isn't a bad thing if the proper perspective is kept. For the most part, Christians try not to be showy pretentious people. Trendy clothes, cars, and designer eye glasses may indicate a person's love or desire for insignificant material possessions and appearances. Most Christians want to be respected for who they are and their faithful life in service to God, not for how their appearance, looks, or possessions. Remember what Christ told the Pharisees in the Parable of the Shrewd Manager. "No servant can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon. And the Pharisees also, who were covetous, heard all these things: and they derided him. And he said unto them, Ye are they which justify yourselves before men; but God knoweth your hearts: for that which is highly esteemed among men is abomination in the sight of God." (Luke 16:13-15) With that said, remaining modest and conservative when choosing designer eye glasses could prevent a person from seeming pretentious and showy.

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An online search indicates that industry standards and workmanship don't differ much between designer eye glasses bought online or in a trendy upscale shop than from their discount store counterparts. Buying designer eyewear online could save a person a significant amount of money. In fact, one online distributor listed frames discounted from $264.00 down to $167.00. That is a 37 percent savings. In addition to having a bevy of popular designer names to choose from, a person also has a number of frame styles and material types to decide upon. Keep in mind, the goal here is not just to look fashionable but to see clearly in a number of conditions and situations. Of course the frame price doesn't include the cost of the lens, which are largely dependent upon what type of material is used to construct the lens. So, after finding a suitable and attractive frame, a person will need to decide on the lens material. And there are plenty of lens types and materials to choose from. Some are very specialized. For example, there is a ballistics lens or a lens that will transition behind the windshield of a car to reduce glare.

Despite what many people might say, choosing the right lens is more important than the frame of the designer eye glasses. Frames are simply a matter of appearance and taste. Some people claim that the frame is an expression of one's personality. That's great. But, as mentioned earlier in the article, seeing clearly is the primary goal of wearing glasses. And the type and quality of the lens will determine the visual clarity of the person's prescription. For the person who is budget minded, plastic lenses are the least expensive. A plastic lens can be made into almost any prescription strength. According to online sources, plastic lenses are easily tinted. Therefore, plastic lenses are an excellent choice for sunglasses, too. Unfortunately, regular uncoated plastic lenses don't allow all the available light to reach the eye. About nine percent is lost to surface reflections. Perhaps one the plastic lenses greatest asset is their weight. In fact, plastic lenses are generally about half the weight of glass lenses.

Glass lenses are still a great choice for designer eye glasses because they have great optical quality and are highly scratch resistant and can be easily tinted. However, the downside is that glass is heavier. One of the most versatile lens materials available is called polycarbonate. Polycarbonate lenses are highly impact resistant. In addition to their resiliency, polycarbonate lenses are lightweight and some have built in ultraviolet protection. Most people have heard about the dangers of ultraviolet radiation. UV is invisible and excessive exposure may damage the eyes. Used in designer eye glasses, polycarbonate lenses are very versatile and are suitable for children and sports. According to some online retailers, polycarbonate lenses are suitable for rimless frames, too. There are other types of specialized lenses, also: transition, photochromic, and polarized.

Once the lenses for the designer eye glasses have been chosen, a person will have a number of coatings to choose from: anti-reflective, back-side, lens colors and tints, scratch resistant, mirrored, and UV filter. Anti-reflective coatings reduce reflections. And, according to some people, makes the lenses more attractive. Backside coating is used on some lenses that are thinner and have flatter curves. A backside coating protects the lens from scratching. Since designer glasses are intended to be fashionable, tints in a wide range of colors are available to protect light-sensitive eyes. A mirrored coating makes the lens appear darker and offers glare protection. Scratch resistant coating makes the lenses less susceptible to scratching. A UV filter is a lens coating that filters ultraviolet radiation. Getting the right lenses coupled with the proper coatings increases the value of eyewear: reduces glare, reduces eye strain, and even improves night vision. Combining the costs of lenses, frames, and coatings will make the price of designer eyewear climb rapidly. Therefore, spending several hundred dollars just to look fashionable is a real possibility.

Understanding the Importance of Eyeglasses

Corrective eyeglasses are as important as the eyes themselves. There are a lot of factors that greatly affect the visual comfort and clarity on people, especially children. For parents, choosing the right eyeglasses for their kids should be done carefully considering both the comfort and the effectiveness.

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It is a common neglect among eyeglasses wearers in Indianapolis that proper maintenance of eyeglasses is as big as a deal of looking for the perfect eyewear. An eyewear that is damaged with smears and scratches could affect the clarity of vision and can pose risks to health and safety. It’s not important whether the eyewear is the most expensive or the least; what matters most is the benefit it gives.

Wearing eyeglasses does not really change the eyes. However, they distort light rays making things easier to be seen. A child who has been wearing eyeglasses may need to replace them as he or she grows up, depending on the treatment and improvement given. In Indianapolis, wearing the right eyeglasses is just as good as having your own good eyes.


There are still a lot of people nowadays who do not want to wear eyeglasses even if there is already a necessity. The fear of humiliation and bullying especially among children triggers this reaction. But, fashion experts had come to the idea of innovating eyeglasses designs from the conventional nerd-type style to what is now commonly known as designer eyewear. Designer Indianapolis eyeglasses are already becoming a fashion statement and had now been boosting the confidence of the wearer instead. With the aesthetic quality of designer eyewear, even people who do not really need eyeglasses wear them as part of the attire.

Optometrists and opticians prescribe eyeglasses to correct vision, not to harm the eyes. Indianapolis eyeglasses should be worn when they should, because the only time that an eyewear could be harmful is when you are not wearing it. However, a regular check-up at least twice a year could help you ensure and monitor your eye condition.

Indianapolis eyeglasses, especially corrective eyeglasses, are prescribed and manufactured by eye experts because they are needed. Choosing the right Indianapolis eyeglasses needs an in-depth consideration on the size of the person’s face and color of the skin, hair, and eyes. If the eyewear style isn’t right, its comfort and benefit wouldn’t be maximized.

Court Casts a Wary Eye on Tracking by GPS

In an argument studded with references to George Orwell’s “1984” and the possibility that rapid advances in technology would soon allow the government to monitor everyone’s movements, the Supreme Court on Tuesday struggled to articulate how the Fourth Amendment’s ban on unreasonable searches and seizures should apply to the tracking of cars using GPS devices. The fit between 18th-century principles and 21st-century surveillance seemed to leave several justices frustrated.

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The lawyers in the case did not help settle matters, with each adopting what at least some justices characterized as extreme positions.

The case concerned Antoine Jones, who was the owner of a Washington nightclub when the police came to suspect him of being part of a cocaine-selling operation. They placed a tracking device on his Jeep Grand Cherokee without a valid warrant, tracked his travels for a month and used the evidence they gathered to convict him of conspiring to sell cocaine. He was sentenced to life in prison.

The United States Court of Appeals for the District of Columbia Circuit overturned his conviction, saying the sheer amount of information that had been collected violated the Fourth Amendment.

On Tuesday, Chief Justice John G. Roberts Jr. said there might be a constitutional difference between discrete pieces of data and the collection of vast amounts of information. “You’re talking about the difference between seeing the little tile and seeing a mosaic,” he said.

But Michael R. Dreeben, a deputy United States solicitor general, said there were no constitutional limits to the government’s ability to track people’s movements in public. He said a device surreptitiously attached to clothing would be permissible so long as it did not convey information from inside a home. He added that the police could track the movements of the justices’ cars without a warrant.

On hearing those statements, Justice Ruth Bader Ginsburg said the “endpoint” of the government’s argument was that “an electronic device, as long as it’s not used inside the house, is O.K.”

Mr. Dreeben said that was correct regarding people’s movements in public. Other forms of monitoring — of conversations inside cars, say — were subject to different rules, he said.

That means, Justice Stephen G. Breyer told Mr. Dreeben, that “if you win this case, then there is nothing to prevent the police or the government from monitoring 24 hours a day the public movement of every citizen of the United States.” And that, Justice Breyer said, “sounds like ‘1984.’ ”

Mr. Dreeben said, “The court should address the so-called ‘1984’ scenarios if they come to pass, rather than using this case as a vehicle for doing so.”

But Justice Sonia Sotomayor indicated that the scenario might have already arrived. “It wouldn’t take that much of a budget, local budget, to place a GPS on every car in the nation,” she said.

Mr. Dreeben said law enforcement officials have used GPS tracking sparingly. At the federal level, he said, “It’s in the low thousands annually.”

Like Mr. Dreeben, Stephen C. Leckar, a lawyer for Mr. Jones, also took a categorical position, saying that in “no circumstances should a GPS be allowed to be put on someone’s car.” He added, “If you want to use GPS devices, get a warrant.”

Chief Justice Roberts, noting that the court had pressed Mr. Dreeben “to the limits of his theory,” asked Mr. Leckar for the limits of his. Would three minutes of GPS tracking violate the Fourth Amendment?

Yes, Mr. Leckar said. Later, he offered some other possible limits: “One day. One trip. One person per day or a trip.”

Justices Samuel A. Alito Jr. and Antonin Scalia said such arbitrary limits should be imposed by legislatures rather than a court.

Some of the justices seemed inclined to decide the case on a narrow ground, that of whether the police had acted unlawfully simply by attaching the device.

Stylish and Sleek Eye Glasses

If you are looking for a stylish and sleek pair of eyeglasses, then rest assured that you have stumbled on the right place. A pair of eyeglasses is no longer a burden these days; it's more like a 'fashion accessory'. Eyeglass industry has boomeranged into a designer entity and is very receptive to the demands of the people. Eyeglasses have become an amalgamation of general usage and fashion. A bit Ironic, considering the fact that contact lenses and eye-surgery provides an effective solution.

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Earlier, people used to have inhibitions while wearing a pair of eyeglasses but popular movie characters like Harry Potter have changed the perspective of millions of people. To comply with the growing demand, a host of choices are being made available to the buyers these days. It is very easy to get confused amongst these abundant choices. Let's talk about the frame of a pair of eyeglass, as it happens to be the most important 'style quotient.'

There are many options available these days. Full frame titanium pair of eyeglasses is one such option. The titanium body frames make sure that your pair of eyeglasses is durable and has a long life span. It's normally available in three colours - Black, Silver (Gun Metal) and Brown. This pair of eyeglasses is perfect if you are looking for a sober yet stylish touch.
You can also go for rimless pair of eyeglasses. As the name suggests, the frame of the pair of eyeglasses does not have a rim. This pair of eyeglasses is perfect, especially if you are a bit apprehensive about using full frame pair of eyeglasses due to the "nerdy" factor. These are available in black, brown and silver shades. Don't be fooled by the design, this pair of eyeglasses is very durable and easy to handle.

Why Do We Need Eye Glasses?

Eye glasses are frames bearing lenses that are meant to be worn in front of the eyes in order to correct vision. Eyeglasses are also worn to protect eyes from flying articles and radiation. Sunglasses are specially designed to allow better vision during dazzling daylight and to protect eyes from high levels of solar UV rays.

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Eye glasses have been in practice since a very long time and will always be. Despite the mounting popularity of contact lenses and other eye surgeries, eye glasses always had their own charm and space. They are available in all types of materials and can suit anyone. Gone are those days when glasses where only available in boring frames and colors. These days, you can get eye glasses in fancy frames and a wide range of colors too.

There are several types of eye glasses that are available in the market these days. Some of them have been described as follows:

Corrective eye glasses - Corrective glasses are meant to correct refractive errors of the eye by adjusting the effective focal length of the lens. This modification can effectively alleviate the effects of medical conditions like myopia, astigmatism and hyperopia. Older patients experience a graver problem like presbyopia that results due to loss of elasticity of an eye's crystalline lens, gradually reducing the ability of lens to focus on objects that are in proximity to an eye. The power of an eye is calculated in diopters. Glasses that are used to correct myopia will have negative power and those used to correct hypermetropia will have positive power. Eye glasses that are meant to correct astigmatism will have two different strengths placed at right angles.


Safety eye glasses - These type of glasses are made with plastic lenses that are resistant to shattering. Such glasses are used to protect the eyes from any kind of flying debris. As per the accepted standards, a safety eye glass must be made from 1 mm thick eyeglass material. They are meant to be light weight and easy to wear.

Sunglasses - These are made to provide protection from bright visible light, especially UV light. This kind of eye glasses is made from photochromic lenses. These days, light polarization is added to eliminate horizontally polarized rays of light.

If you are facing any eyesight problems, you must consider opting for eye glasses. Clarksville, TN has a number of eye check-up centers that offer superior services.

Study: Zeaxanthin helps protect eyes, improve vision

Carotenoids play a crucial role in protecting the integrity of vision and ocular health, particularly lutein and zeaxanthin which are the macula's carotenoids of choice. And a new study published in the Journal of Optometry confirms that supplementation with zeaxanthin demonstrably helps improve vision and protect against macular degeneration.

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Individuals over the age of 55 have an increased risk of developing age-related macular degeneration (AMD), a condition marked by symptoms of decreased visual acuity at night, blind spots, color degradation, and problems reading in low light. Many elderly folks who suffer from advanced AMD end up losing their independence as they no longer have the ability to see clearly in certain situations.

But Stuart Richer, PhD, OD, at the Veterans Administration Hospital in Chicago found that zeaxanthin effectively helps prevent and reverse such symptoms by restoring this vital pigment in the retina macula. Participants in the study that took 8 mg (milligrams) of zeaxanthin, 9 mg of lutein, or a combination of both over the course of a year experienced increased macular pigment optical density (MOPD), improved vision, and a number of other benefits.

Zeaxanthin and lutein both occur naturally in the back of the eye at an optimal 2:1 ratio. Zeaxanthin in particular protects the cones of the eye, also known as photoreceptors, which are responsible for maintaining central vision, color perception, and fine detail. And while this powerful nutrient occurs naturally in various fruits and vegetables, most Americans do not ingest enough of it, on average, to acquire optimal benefits.

Supplementing with zeaxanthin, individuals can ensure that they are effectively protecting their vision against light-induced oxidative damage, which is one suspected cause of AMD. Supplementing with zeaxanthin can also provide general antioxidant health benefits as it is a known anti-inflammatory nutrient.

"Since the identification of zeaxanthin and its role in eye health more than 20 years ago, I have seen it as my mission to bring the benefits of Zeaxanthin to a wider audience," said Dennis Gierhart, PhD and CEO of ZeaVision, a company that researchers and produces zeaxanthin. "I am thrilled with the findings that support the many benefits of zeaxanthin supplementation."

Eye Diseases: Symptoms, Causes and Types

Eye diseases are related to visualization problems, occurring due to lack of dietary, infections, continuous work and other varied factors. These diseases may affect people with minor problems while others suffer from major symptoms that can result in loss of vision permanent. Patients need to change life styles with healthy diet because it totally depends on what and how we eat in routine. Healthy diet provides enough minerals and vitamins to body and its related parts. Another thing is patients suffering from eye sickness should often wash their eyes with clean water, get enough rest and perform eye exercises which can improve eye vision and eye health. Yoga eye exercise strengthens eye muscles and eye lens. Regular checkups of the eyes can help avoid eye related diseases.

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There may be several reasons that cause eye sickness in a person. Causes of eye diseases include external factors, aging, infections, damage, and eye drugs side effects, high blood sugar level, injury, and lack of vitamins can also add to eye diseases. The most common eye diseases are caused through anxiety, allergies, smoke and genetic factors.




There can be a variety of symptoms of eye problem depending upon the nature of the affecting sickness. Performing activities in areas that promote infections of the eyes is also one of the factors. Symptoms of eye diseases is redness, tearing, itching, tiredness, cataract, blurriness, discomfort watching TV, long time use of computer or reading a book late into the night. Patient should have regular checkups of their eyes because eye diseases do not have any symptoms. Eye diseases symptoms include: itchy eyes, red eyes, dry eyes, pain, redness, headaches, blurred vision, and excessive watering of the eyes. Some of them may just irritate the eyes and cause discomfort while others may cause major problems in their vision.

Cataract, age related macular degeneration, glaucoma, retinal diseases are the most common types of eye diseases. When natural eye lens turn dark, a person can experience unclear vision and in this case one is said to have developed cataract. Symptoms of eye disease include failing to identify any colour, he or she feels double images. Treatments are varying from their causes and types depending on how they suffer from existing problems. Person affected with major problem surgery and laser therapy help to remove the dense layer from eye lens. Dry eye is the most common eye problem people suffer as a result of several substances in the environment such as eye itching, long term usage of television and computer that can lead to suffering eyesight over a period of time. Glaucoma is a disease that damages the optic nerve that carries visual signals from eye to brain. Glaucoma usually affects both eyes, but can also affect one eye. It occurs with a significant amount of nerve damage resulting in loss of vision. Retinal disease (diabetic retinopathy and retinitis pigmentosa) occurs with group of genetic disorders in which cells in the retina deteriorate to causing loss of color vision together with peripheral vision.