The Advantages of Free Form Progressive Lenses
Digital processing and the ability to create “free form” lenses has enabled Opticians to craft lenses that better suit the needs of the user while minimizing the distortion in progressive lens designs. These Digital lenses are made using a three-axis Computer Controlled Generator to carve a complex surface that looks something like a 3-D map. In addition, lenses made this way have a resolution up to six times greater than traditional progressive lenses, which gives Noticeably Improved Vision!
A recent study performed at the University of California, Berkeley supported the benefits of the free-form lenses, including “statistically significant preferences for the optically customized free-form lenses over the non-free-form lenses.” The study also found that subjects “reported a wider field of undistorted vision when looking through the reading zone of the test spectacles.” Unsurprisingly, the study found that consumers prefer the lenses over conventional progressive lenses, that they were able to adapt faster to the lenses, and that they reported a wider near-vision zone.
This last point is becoming increasingly important as a growing share of the population is spending a sizable amount of time looking at objects in the near-to-intermediate visual zone, such as iPads, Kindles, smartphones, computers, and the like. This has contributed to the demand from users to widen the intermediate zone in the progressive lens. Most design companies report that one of the major things that users don’t like about progressives is the fact that the intermediate zone in the lenses is too narrow. Using digital processing, however, it can be made wider than it has been traditionally.
Certainly, Digital lenses will help to Clarify your vision AND help with Reading and Computer needs. Ask your Optician(the True Eyeglass Professional) about Digital lenses!
Special anti-reflective coatings are now available for spectacle lenses, much like those used for camera lenses. These coatings are particularly effective for reducing eye fatigue when on the computer, reading, or driving at night. However, only the latest ones also are Scratch resistant, static resistant, and smudge resistant. Of course, AR lenses enhance appearance by removing all distracting reflections.
What are Transition VII Lenses?
The New Transition signature VII lenses replace the traditional transition lenses currently sold by many retailers and Optometrists. This New Technology is the most responsive everyday Adaptive lens ever, providing a superior visual experience.
Transition Signature VII lenses are designed to quickly adapt from fully clear indoors to dark in the brightest sun. The lenses provide just the right amount of tint outdoors, offering a distinct advantage over regular clear lenses. They replace older Transition lenses as the Optimal choice for maximum indoor clarity and responsiveness to UV outdoors.
This is the lens You have been waiting for! New Transition Signature VII lenses provide a superior visual experience by being more reactive to varying outdoor light conditions. In fact, more than 8 out of 10 clear lens wearers rated Transition Signature VII lenses better than their regular clear lenses.
Polycarbonate lenses are the most impact resistant lenses available and are always the lens of choice for young people and active patients. They are very protective and are usually required for Sports and Safety eyeglasses. Polycarbonate absorbs all harmful UV (ultraviolet) light. They are considered high index lenses and are usually the lightest and most comfortable. This material is thinner than regular plastic (although not the thinnest material.)
There are many thin lenses. They are ranked by the number of their indicies, the higher the number the thinner the lens. To give you and idea, regular plastic is 1.49, and polycarbonate is 1.59 index. There are lenses that are 1.67, 1.70, and even 1.74!! All of these lenses are UV (ultraviolet) protective!!
There are many Progressive (no line) lenses on the ‘market’ nowadays. However, a great deal of them are extremely difficult to use and even more difficult to wear. It is important to make sure you purchase a progressive meant for computer wear, even if you aren’t a ‘computer’ person. Lenses meant for computer wear are some of the better designs and will make the ‘visual field’ easier to adapt to. It is also important to get a Progressive lens that will work with the frame that you pick out. Many Opticals will tell you that a progressive won’t work in small frames. This is not true, as there are a number of Manufacturers that have designed their lenses just for this very purpose. Any quality Optical will be able to instruct you as to which Progressive lenses are designed for this purpose. There are many lens brands and many lens designs—-no one brand is best for all frames OR prescriptions. Progressive lenses should be purchased from a trained qualified Optician that is familiar with all the brands and can help you choose which one is best for you!!
Polarized Sun Lenses
These lenses are the best Sun lenses at eliminating reflective glare. They are especially effective for drivers, fishermen, hunters, golfers, and all types of outdoor sports. Many of us have suffered when driving and looking directly into the sun. The glare from the hood of the car and windshield are debilitating. Polarized sun lenses eliminate this reflective glare as well as the glare during a hazy day. They are great for the beach! When you purchase sunglasses, ask to see the Polarized sun lens display so you can see the difference between regular sun lenses and Polarized ones!!