A Family Friendly Vision Center
- Eyeglass Lenses -
The following lenses are lighter, thinner, and more scratch-resistant than glass or the older plastic types.
As technology advances, so do lenses. In the past, they were made exclusively of glass. Today, most are made of high-tech plastics. These new ones are lighter, don’t break as easily as glass, and can be treated with a filter to shield your eyes from damaging ultraviolet (UV) light.
A few of the common types of eyewear lenses
Bifocals
Bifocals are the most common type of multifocal lens. The lens is split into two sections; The upper part helps with distance, the lower half is for near vision usually prescribed for those over 40 who can’t focus well anymore. This is due to presbyopia, an age-related change in your eyes lens.
Trifocals
Trifocals take bifocals one step further by adding a section for people who need help seeing objects that are within a couple of feet like a computer. The magnifying power of trifocals adds to the range of vision offering a wide field of view when using a computer or glancing at dashboard gauges while driving.
Polycarbonate
Polycarbonate lenses are resilient, impact-resistant and a favorite among active individuals. Savvy parents choose polycarbonate lenses for children who may not take good care of their glasses.
The durability makes them a good choice for rimless eyeglasses. Plus, polycarbonate lenses have built-in UV filters to help prevent eye problems such as macular degeneration ( breakdown of macula ) and cataracts ( clouding of the eye lens ).
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Progressive
Progressive lenses have smooth progression of power, enabling the wearer to see at intermediate distances as well as near & far. Unlike typical bifocals & trifocals, progressive lenses don’t have lines separating the lens sections; a big win for the style-conscious! Progressive lenses, sometimes called "no-line bifocals," eliminating traditional lines and the fact that you need reading glasses.
Polarized
Polarized lens reduce glare reflected off surfaces making images appear sharper and clear; They are available for non-prescription and prescription sunglasses, worn indoors by light-sensitive people, including post-cataract surgery and those continually exposed to bright sunlight through windows. Most polarized lenses provide UV protection, which is important to maintaining healthy eyes.
High-index
Ordinary plastic lenses can result in a thicker lens. In contrast, high-index lens material will reduce lens thickness for greater comfort and a better appearance. High-index lenses are good for people who are "nearsighted" due to a difficulty in focusing on far away objects. High-index lenses can bend light rays more, while using less material in lenses created for
both nearsighted and farsighted people (hyperopia).