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Progressive lens is an advanced optical technology today. These lenses can help in correcting your vision as well as at a distance which can’t be provided by the conventional bifocal lenses. There are lots of distinct advantages Progressive technology offered today, our vision choices give us quite a few more options, one of them being progressive lenses. Both near and at a distance, progressive lenses are designed to provide lens power for all viewing distances. It is more convenient than traditional glasses. Not anymore peering over or under your lenses as your vision will remain clear in any direction you turn your head. They allow comfortable viewing at monitor and your computer keyboard. It is enable you to work as efficient as you need to. However, as with any new eye glasses there may be a short adjustment period. That holds true for progressive lenses as well; which is usually a couple of days. At the outset you may experience slight occasions of objects appearing slightly blurry but as your eyes adjust your vision will correct itself.
The adaptation to modern progressive lenses is made easy as the corridor of vision, and it is vertically down each progressive lens. The lens power is designed to be seamless allowing you to change focus comfortably both distance and near viewing. So measurements are taken of each eye to ensure that the correct vision corridor is prescribed for your progressive lenses. You will not experience image jumping that is so common in trifocal or bifocal glasses. The reason for this is that the lens power is designed to be seamless allowing you to change focus comfortably both distance and near viewing.
There is another new advanced technology which called REAR SURFACE. Free form progressives use this new technology. REAR SURFACE enables us to customize the lens design for individual prescriptions and various frame compositions comparative to the limitations of traditional lens manufacturing. The traditional lens can only be tailored for broad categories of wearers.Deciding on an ideal or target optical performance for the lens design for the given prescription promotes this technique. The actual optical performance can then be determined using computer ray tracing and lens-eye modeling. Finally, it can complex state-of-the-art computer generated algorithms map out the surface of the lens to achieve an optical performance of optimization by minimizing the differences between the target optical performance of the design and the actual optical performance.
Comparing to traditional progressive lens manufacturing，Free Form Progressive Lens will ensure the widest fields of vision. With a Rear Surface progressive the viewing zones will be achieved as much as 50% larger. As they will give clearer, wider fields of vision, REAR SURFACE will revolutionize the eyeglasses industry.
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