We care about your eyes!

We care about your eyes!

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Lenses and Coatings PDF Print E-mail

Lens Options

anti-reflective coatingAnti-Reflective Coatings

Normal eyewear often creates glare, reflections, and “ghost images.” Now all that can be eliminated with an anti-reflective treatments.

What we see is a result of light being sensed by our eyes. With normal glasses, much of the light reflects off the lenses. This produces glare. It also reduces the wearer’s visual acuity. In other words, the light reflection is both a cosmetic and visual problem.

Anti-reflective coatings increase light transmission through the lenses to 99.5 percent. They make it easier to see and easier for others to see you. These coatings are especially useful for those viewing computer screens and driving at night.

Cosmetic and Specialty Tints

Your glasses do not have to be an eyesore to those around you. Eyeglasses can be a stylish accessory, a part of your personality, or a way for you to be unique. There are a variety of frames to choose from, but you may not know that there are also many ways to improve the appearance of the lenses. Cosmetic tints are now available. These tints offer a variety of colors and shades. You can choose light blue or any other color of the rainbow. Some lenses are clear at the bottom and gradually get more colored towards the top of the lenses. There are many ways to adjust your lenses to whatever style suits your personality. Some tints are also functional.

Recently there has been much attention on a condition called Computer Vision Syndrome, or CVS. A special tint for your glasses can reduce eyestrain associated with CVS.

High Index Lenses

high_indexPrevious to the last few years, the only materials available for use as lenses were glass and a hard resin called CR-39. But recently, high index lenses have become available. High index materials are named because they have a higher index of light refraction. Basically, they can do the same job that glass or CR-39 does, but high index lenses are much thinner and lighter. With high index lenses, you can avoid having “soda bottle” lenses.

When learning about high index lenses, you may hear many unfamiliar numbers and terms. Here are a few things to remember.

Polycarbonate
The first and still the most popular high index plastic is polycarbonate. Polycarbonate was originally developed for fighter jet cockpits. It is very strong, very light, and resistant to scratches and breaking. Most sports lenses are made of polycarbonate.

Mid-Index
Other high index materials are classified by numbers. The higher the number, the thinner and lighter the lens. The lower numbers are classified as mid-index lenses. Mid-index lenses, such as 1.54, 1.56, and 1.57, are thinner than glass, and nearly as strong as CR-39.

High-Index
High index lenses, such as 1.66, 1.74, and 1.9, are much thinner than regular glass or plastic. Talk with your doctor to decide which high index lens is right for you.

Photochromics

If you have ever felt frustrated at needing both prescription glasses and prescription sunglasses to accommodate an outdoor lifestyle, you should consider photochromic lenses. Photochromic lenses darken when exposed to UV rays. The change is caused by photochromic molecules that are found throughout the lens or in a coating on the front of the lens. When the wearer goes outside, the lenses darken or tint. When the wearer goes back inside, the glasses become clear.

Polarized LensesPolarized Lenses

Glare from wet roads, light reflecting off other vehicles, and glare from your own windshield can be annoying and dangerous. To eliminate this glare, we offer polarized lenses. Polarized lenses eliminate almost all glare, reducing eye strain and increasing visibility. Polarized lenses are the most effective way to reduce glare.

Scratch Resistant Coating

If you have hard resin lenses (CR-39), you should consider getting a scratch resistant coating. Resins and plastics are more susceptible to scratches than glass. Scratches damage the cosmetic look of the lenses and compromise their performance. With a scratch resistant coating, you do not have to worry as much about minor scratches on your lenses.

Another advantage of scratch resistant coatings is that most coatings come with a one-year warranty. They are a great investment to prevent minor scratches. However, it is important to remember that scratch resistant does not mean scratch-proof. All lenses are susceptible to scratches.

Multifocal Lens Styles

Progressive Lenses

One of the main problems with bifocal and trifocal lenses is the problem of eye fatigue. It is difficult to switch from one focusing power to another. It can make your eyes tired, and it can even lead to a headache, sore neck and sore back.

A variation of bifocals and trifocals is the no-line lens or progressive lens. No-lines provide a smooth transition from focusing on nearby to focusing on distant objects because they do not have a distinct line which separates the focusing powers. Instead, a gradual change in power allows the wearer to focus on objects at all distances. Distant objects are viewed through the upper portion of the lens, while near objects are viewed through the middle or lower portion of the lens. These are also great for computer users.

Bifocal Lenses

For many people, different lenses are needed for seeing at different distances. Bifocal lenses allow the wearer to look through two areas of the lens. One area focuses on distant objects. The other is used for reading.

Trifocal Lenses

Bifocals allow the wearer to read through one area of the lens, and to focus on distant objects through another area of the lens. As the eyes age, though, a stronger prescription is often needed to read. This would be fine, but the stronger prescription that allows for reading makes it difficult to focus on objects at intermediate distances, such as grocery items on a shelf or your speedometer. Thus, trifocals are necessary for a third prescription for intermediate focusing.

Specialty Lenses

We all have heard the phrase, “Different strokes for different folks.” Well, this also holds true when it comes to selecting glasses. There are different lenses for just about everybody. No matter what your particular need, there is probably a specialty lens designed for you.

For example, a specialty lens that is becoming increasingly useful is designed for computer users. Computer lenses have “windows” designed for viewing your computer screen, documents on your desk, and distant objects. The lenses are designed to reduce Computer Vision Syndrome, or CVS, which is characterized by headaches, eye strain, neck and back aches, dry eyes, blurred vision, and double vision.

 
Sports and Sunwear PDF Print E-mail

Sport Lenses

If you play sports, you should keep two things in mind related to your vision: protection and precision.

Sports GogglesSports lenses protect the wearer’s eyes. Sports such as tennis, baseball, softball, and racquetball may see ball speeds of 90 mph or more. In baseball alone, there are over 500,000 injuries per year! But that is not the most common cause of sports-related eye injuries. Most eye injuries occur in basketball, where an elbow or a finger jabbed into the eye can cause corneal abrasions, fractured bones, retinal detachments, or even blindness. Polycarbonate lenses are more resistant to impact than glass or plastic and offer protection for 90% of eye injuries. Protective eyewear fits well, features a padded bridge, has prescription or non-prescription lenses, and has deep-grooved eyewires to prevent the lens from falling out.

The specialized lenses also optimize your vision. Depending on your sport, certain lenses are more appropriate than others. Dark, UV protection lenses are great for baseball and other outdoor sports. Golfers can benefit from gray-brown colored lenses which make it easier to outline the course. Even if you do not 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.

Sunwear

SunglassesTo reduce exposure to UV rays and their effects, we recommend you invest in a set of sunglasses which can provide at least 98% protection from UVA and UVB rays. While cheaper sunglasses can range from poor to excellent UV protection, our sunwear lines provide the best protection from the sun. We carry a large selection of styles and colors.

Another product to consider is a pair of polarized sunglasses. Polarized lenses block light reflected from surfaces such as a flat road or smooth water. If you are involved in activities such as water sports, skiing, golfing, biking, fishing, and even driving, polarized lenses can be very helpful in reducing glare and giving a clearer view.

Finally, if you have a youngster in the family, it is never too early to fit them with sunglasses. Children under the age of 20 are the most susceptible to the damaging effects of UV light. One concern of parents is that their child will scratch, break, or lose the sunglasses; we are here to help you make the best choice for your child.

 


 
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