The sharpness of your vision as well as the comfort of your eyewear depends a lot on the quality of the lens and its design. We offer a wide variety of lens designs, such as progressive (no-line) bifocals and trifocals, and materials, including high-index and transition lenses, to suit your various needs. The addition of proper lens coatings can actually enhance your day-to-day performance and appearance. We offer features such as scratch coating, UV protection, anti-reflection, and various tints.
Accent on Vision - East (Lenses Treatment) Normal lenses often create glare, reflections, and "ghost images." Now that can be eliminated with an anti-reflective coating.
What we see is a result of light being sensed by our eyes. With untreated 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 reflections are a cosmetic and visual problem.
Anti-reflective treatments increase light transmission through the lenses to 99.5 percent. It makes it easier to see and easier for others to see you. These treatments are especially useful for those viewing computer screens and driving at night. There have been many advancements in the newer treatments. These improvements include scratch-resistance, smudge-resistance, and no more flaking. We recommend only the highest quality anti-reflective treatments for superior optical performance.
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
Recent variation of bifocals and trifocals are called no lined lenses or progressive lenses. Progressives provide a smooth transition from focusing on nearby objects 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.
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. A little-known fact is that bifocals were invented by Benjamin Franklin, and his style of bifocals are still available today.
Most of the time the "reading" area is smaller, shaped like a sideways "D", and found in the lower hemisphere of the lens. These bifocals are called line bifocals or flat-tops. If you are focusing on distant objects, you look through the top half of the lenses. To read a book, magazine, or newspaper, you look through the "reading" area. The Franklin style lenses are less common, and are split horizontally down the middle of each lens. One thing that is difficult about using bifocals is dealing with the line between the two vision areas. Fortunately, recent technologies have developed a new type of lens, called the no-line, or progressive lens.
Cosmetic and Specialty Tints
Your glasses don't 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 different. There are a variety of frames to choose from, but you may not know that there are a variety of ways to improve the appearance of the lenses, too. Cosmetic tints are now available. These tints offer a variety of colors and shades. You can choose light blue or any color under 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. There are many different functions for different lens tints. Our opticians will be happy to discuss with you the most appropriate lens tints for your lifestyle needs.
High Index Lenses
Previous to the last few years, the only materials available to use for lenses were glass, a hard resin called CR-39, and polycarbonate. 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 speaking about high index lenses, you may hear many unfamiliar numbers and terms. Here are a few things to remember:
The first and still 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 impact. Most sports lenses are made of polycarbonate. Polycarbonate lenses are prone to abberations (distortion) and may not provide the optical clarity desired. We recommend the newer impact-resistant material trivex.
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. These lenses are thinner than glass, and nearly as strong as CR-39.
High index lenses, such as 1.66, 1.67, and 1.7, are much thinner and lighter than regular glass or plastic. Those individuals with higher prescriptions will benefit cosmetically and with greater comfort. Talk with your doctor to decide which high index lens is right for you.
These lenses were designed for office work involving computer use and paperwork. Single vision lenses are focused at one distance and have a relatively small focal range. Near-variable lenses provide much more usable vision from about 6 to 12 feet away up to about 16 inches at near. These are specialty lenses designed for near work and are not appropriate for full-time wear. This is the most popular choice for computer eyewear.
Transitions or Photochromics
If you've ever felt frustrated at needing prescription glasses and prescription sunglasses to accommodate an outdoor lifestyle, you should consider transition lenses. Transition 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.
There are a variety of transition lens options available. Depending on what you choose, you can customize the lenses to your needs. Some lenses darken only in direct sunlight, while others darken in little or no direct light.. You can even choose the color of the tint. Ask our knowledgeable opticians what options are available.
Accent on Vision - East (Polarized 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.
Most glare comes from horizontal surfaces, so the light is "horizontally polarized." Polarized lenses feature vertically-oriented "polarizers". These polarizers block the horizontally-polarized light. The result is a glare-reduced view of the world. Polarized lenses can make a world of difference for any outdoor enthusiast. Fisherman can eliminate the bright reflections from the water and actually see into the water more easily than with any other sunglasses, golfers can see the green easier, and joggers and bikers can enjoy reduced glare from the road. In addition, drivers can enjoy the safety and comfort that polarized lenses provide while driving. Annoying glare and reflections on the windshield are virtually eliminated with polarized lenses.
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 as well as their performance. With a scratch resistant coating, you don't have to worry so much about minor scratches on your lenses.
Another advantage of scratch resistant coatings is that most coatings come with a one or two-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.
The newer anti-reflective treatments also include a scratch resistant coating.
We all have heard the phrase, "Different strokes for different folks." Well, this holds true in terms of selecting glasses. There are different lenses for just about anybody. No matter what your particular need, there's probably a specialty lens designed for you.
For example, near-variable lenses are specialty lenses that are becoming increasingly popular for computer users. Computer lenses are designed for viewing your computer screen, documents on your desk, and distant objects up to 12 feet away. 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.
Another example is called the double D-segment lens, also known as the double flat-top lens. If you look through most of the lens, you can focus on distant objects. But you can also look through a D-shaped segment near the top of the lens to see nearby overhead objects more clearly. This is very useful if you are involved in work where you're looking at nearby objects above your field of vision, as with carpenters and pilots. The D-shaped segment near the bottom of the lens allows for reading.
We have designed custom-made lenses for target shooters, golfers, and pilots. If you have a particular need, our doctor and opticians will work with you to design the best lenses for your needs.
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 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.
Trifocals, also known as line trifocals, feature three areas of focusing power, each separated from the other by a distinct line. The three windows allow for focusing on distant objects, intermediately distanced objects, and for reading. The downside of trifocals is dealing with the lines between the different focusing powers. Fortunately, recent advances in technology have led to developments in no-line, or progressive lenses. We only recommend trifocal lenses to those few patients who cannot wear progressives.