What is a Progressive Lenses?
The progressive lens goes by several names such as: progressive addition lenses (PAL), progressive power lenses, graduated prescription lenses, multifocal and varifocal lenses. All of these lenses are corrective lenses used in eyeglasses and contacts to correct presbyopia and other disorders of accommodation.
Why is a Progressive Lenses Necessary?
Eyes change throughout our lives, gradually losing the ability to focus on close objects. During our mid-forties, the lenses in our eyes become stiffer, and the muscles that control them change – which eventually causes blurred vision. This is called Presbyopia, and it happens to all of us. You’ll probably find yourself holding books, newspapers or product labels further away, or needing more light in order to read clearly. Progressive lenses offer you an eyeglasses-free solution that will give you both good near and distance vision.
How the Progressive Lenses Works
How your lens works depends on what your focal needs are. Some progressive lenses are designed with bifocal elements– two distinct lens powers that accommodate for distance vision and near. Others have a multifocal design similar to progressive eyeglass lenses, that have a gradual lens power change to support a more natural visual transition from distance to close-up.
Progressive lenses are characterized by a gradient of increasing lens power, added to the wearer’s correction for the other refractive errors. The gradient starts at the wearer’s distance prescription, at the top of the lens and reaches a maximum addition power, or the full reading addition, at the bottom of the lens. The length of the progressive power gradient on the lens surface depends on the refractive index of the lens, with a final addition power between 0.75 to 3.50 dioptres for most wearers. The addition value prescribed depends on the level of presbyopia of the patient and is closely related to age and to a lesser extent, existing prescription.
Eliminating Image Jump
Progressive lenses are an attractive option for presbyopia because they eliminate the annoying “image jump” associated with bifocals/trifocals. With bifocals/trifocals the images you see move as your eyes pass the lens boundary between the distance and near parts of the lens. The technology behind progressive lenses offers a smooth transition between lens powers within the lens so you can alternate between distance to near with no image jump.
Optical Masters Adaptive Warranty
Don’t worry if you’ve never tried progressive lenses before. Our trained Opticians are at hand to give you expert advice on which lenses to choose and how to get the most from them. As a final reassurance, if at any time within 30 days you are not comfortable with your new multifocal contact lens, we will exchange them to the same value for more suitable lenses.
Even progressive lenses cannot offer 100% clear vision – there will be areas of the lenses through which you will see softer focus. The lenses you choose can determine the amount of soft-focus area you experience. A tailor-made lens will enable you to minimize this effect. Varilux Progressive Lenses by Essilor are the most advanced lenses available in the market.
Call for a Consultation
If you are interested in progressive lenses to correct vision errors, but don’t know where to start, visiting one of our Denver locations is your first step. Our experienced and friendly staff can help you narrow down your options and find the product that will help you achieve optimum vision and optimum comfort. Located at two convenient Denver locations–King Soopers Shopping Center off of South Monaco Parkway in Denver and at the Brentwood Shopping Center on Federal Boulevard–Optical Masters can offer you top-rate eye care services and help you with your eye health goals.