Receiving the right amount of light is critical to good vision, but exposure to the wrong type of light can result in serious long-term problems. Excessive exposure to ultraviolet (UV) wavelengths can cause eye conditions ranging from corneal burns (photokeratitis), growths on the conjunctiva (pterygium) and cataracts. UV is invisible, but that only makes it more harmful.

Ultraviolet radiation is a part of the overall electromagnetic spectrum and is produced by sunlight, tungsten lamps, welding arcs, and certain types of fluorescent lights. It is classified into three categories: UVA, UVB, and UVC.Fortunately, UVC (190nm to 280nm) wavelengths are absorbed by the ozone layer of the earth. These short, high-energy radiations can cause mutations in plants and animals. UVB wavelengths (280nm to 315nm) are also considered higher energy wavelengths and can cause sunburns, skin blistering, and skin cancer. This range of UV is why you wear sun block on a sunny day. The upper portion of this spectrum (from 300nm to 315nm) enters and affects the eye. UVA (315nm to 380nm) is the portion of the UV spectrum that is considered most harmful to the human eye because it is totally absorbed by the eye’s crystalline lens.

Since the cornea transmits UV wavelengths from 300nm to 400nm, spectacle lenses should absorb these wavelengths for the patient to be protected from ultra-violet radiations. Armed with all the information on harmful UV, lens manufacturers have developed lenses made of materials that absorb these wavelengths without the need for added UV treatments. Remember, the American National Standards Institute (ANSI) requires that lenses classified as UV absorbing block 99.8% of UVB and 70% UVA.

Ultra-violet radiation may be harmful to the human eye, but with all the lens material options available today that absorb it, patients can easily get the protection they need simply by getting the appropriate lens recommendation. The right sunglasses protect the eyes from these damaging rays while still looking stylish and fashionable.
At ContactsandSpecs.com all the sunglasses have UV protection.

Did you know that when you wear glasses you send out signals? Its the language of glasses. Let us open your eyes to the language of glasses.First you match your glasses to your face shape, hairstyle, coloring and appropriate image. ContactsandSpecs.com are the exports to find the perfect look.
Then consider adopting some of the following glasses moves and their possible sociological meanings.

When women flip their hair or play with their strands, this sends a definite message that they are flirting or being seductive.

When a man touches the bridge of his glasses this lets a woman know that he may be contemplating a more intimate connection.

Consider the following eyeglass behaviors:

Wearing glasses on the tip of the nose with eyebrows arched.  Human behavior experts believe that when people wear their glasses down towards the tip of the nose that they are sending a signal of intensity.  It also indicates a deep focus and serious interest in the subject at hand.

Putting the earpieces in the mouth and teething the temple of the specs:  As you would expect, this behavior draws direct attention to the lips, the tongue and the mouth in general.  This signals reflection, introspection and decision making.

Sucking on the ear piece by itself:  Indicates a desire for more intimacy and communication.  This behavior ties directly into the oral fixation theories.

Pushing glasses up on top of the head:  Adds seriousness and a sense of drama to any situation.  This movement could be considered to be equivalent to a pregnant pause.

Ripping glasses off face and throwing them down:  Indicates anger or shock.  Great way to get attention.

Absent-minded twirling or playing with glasses:  Draws attention to a playful free spirit.  Act of flirtation.

Remember, in 2007 -08, anything goes with fashion, hair and makeup if it is flattering to you and conveys the image you wish to project. So go out there and try on those sizzling new frames, practice those seductive spectacle poses and have a blast.

Have you ever worn polarized sunglasses? Today’s polarized lenses come in a spectrum of possibilities. Not only are polarized lenses available in many styles from single vision to progressives, they now come in many different lens materials and colors, too. Even photochromics are now available in a polarized version.Polarized lenses contain special horizontal polarizers or filters that help reduce glare off water and things such as paved roads. They also help enhance colors and vision in some high-glare situations. The lenses are invaluable in high-glare situations, such as driving, boating, golfing, surfing, and fishing. Polarized lenses also help reduce glare, which can be a real problem in water sports and many other outdoor activities.

Some lens colors perform better than others, depending on lighting conditions and environment. For example, a dark gray tint works best for intense glare and bright sunlight encountered when driving, boating or deep-water fishing. Melanin and Brown C tints improve contrast and work well in bright conditions for golf, snowmobiling, and shallow water fishing. Green works well on bright days for tennis and baseball. Orange and yellow tints block blue light, and perform best under low-light or overcast conditions. These may be used for shooting, biking, and skiing. Red works well for low-light fishing, skiing, while violet or purple can be used for golf on overcast days.

Some polarized lenses can block the reflected light of LCDs, too. These are the lights in many dashboards, bank automated tellers, and other electronic devices. So if you have never worn polarized sunglasses take a look at our collection at ContactsandSpecs.com to find the perfect pair. And remember most sunglass lenses can be duplicated in your prescription.

Sports sunwear and prescription eyewear for the sports enthusiast are so specifically and strategically constructed that virtually every activity is covered by a product. There is sports sunwear specially made for skiers, and other product designed with cyclists in mind. Consider there are now sunwear lenses that enhance the user’s ability to see golf balls in motion. To add to the mystique, it’s all fashion forward, with a diversity of colors, shapes, and styles.Sunwear for sports has evolved technologically, just like sneakers and other sports-related products. The good news is that today’s casual or dedicated sports enthusiasts have an abundance of excellent choices. Whether it’s lighter and more durable frame materials, interchangeable lenses, or colored tints for different sports, performance sunwear has taken a dramatic upward turn. Serious-minded sports enthusiasts are looking to upgrade their sunwear as it becomes more and more a part of their gear and eyewear manufacturers are responding to this phenomenon in full force.

There are a wide variety of frame materials which can impact performance, durability and comfort such as magnesium, aluminum, stainless steel, titanium, carbon fiber, nylon composites, and injected alloy. These reduce weight, increase flexibility, and add strength. Style features such as non-slip bridges, gripper temples, spring hinges, shields, wraps and venting systems add value and comfort and pump up your performance at the same time. Sun clips and sunwear that fits directly over prescription eyewear are also available to meet specific needs. And while the newer, innovative frame materials and high-tech finishes make them look appealing, but it’s the lenses that really make them sizzle and complete the eyewear’s allure. Whether it’s a mirror coating, or a new and improved anti-reflective (AR) or scratch coating, the lenses provide function and top off the attitude.

In high-tech sports sunwear, it is not only the frame that is high tech. The lenses boast newer, more advanced coatings to complete the look and attitude of today’s sports sunwear. Interchangeable lenses have become more popular than ever, allowing consumers to have more choices. AR is an essential lens option for any pair of glasses. It’s beneficial on sports eyewear because the lenses are usually tinted, often to a dark color. The most disturbing lens reflection is from the back, where the surface of the lens acts like a mirror. This leads some patients to complain that they can see their eyes in the backs of the lenses. Dark-colored lenses and mirror coatings accentuate this effect, while AR coatings reduce or eliminate it.

Performance sports eyewear has to be able to be almost as rugged as the sports themselves, making an excellent hard coating essential. Hydrophobic coatings facilitate water droplet runoff from lens surfaces, thereby offering distortion-free vision. Depending on your sport, certain tints are more appropriate than others. Dark, UV protection lenses are great for baseball and other outdoor sports. Golfers can benefit from gray-brown tinted lenses which make it easier to outline the course. Even if you don’t normally wear glasses, non-prescription sports lenses can benefit your performance. Some people think that lenses prevent the wearer from seeing the action, but many sports lenses have anti-fog, glare reduction, and scratch resistant properties. Some are also designed to maximize peripheral vision.

At ContactsandSpecs.com you will find the right pair for your sunwear needs and style.