Which lens is best for you? We at Lindy Eye Care have over 60 years of experience providing the best lens technology. As that technology expands, our experience becomes essential in clarifying your options. From single vision lenses to occupational (computer, piano, stamp-collecting, etc.) lenses to sports and biking lenses ... and to bifocals, trifocals, progressives and occupational-progressives, there are many options.
Confusing? No need to be. We match the best lenses available to your needs. We take the time to carefully match and fit those lenses properly in a frame that looks and feels best for you. And we always guarantee our eyewear because our objective is to make you happy and comfortable with what you are wearing. Contact us any time with questions, suggestions or feedback. See: Lens Designs, Lens Materials, and Lens Coatings (below):
Single vision lenses correct only one distance, but that may be all you need. If your eyes can adjust focus (a function that is slowly lost, beginning around the age of 40), or if you only need glasses to correct one distance, this may be the best type of lens for you. Certainly, this is the easiest lens design. The only complication is to match the power of the lens to the exact need that you have ... and our doctors are sure to take the time to make that happen!
Multifocal lenses correct vision at multiple distances. The traditional multifocal lens is the bifocal (below, left). There are many bifocal designs: round seg, flat top, full-length, etc. The advantage of standard bifocals is that their function is easily understood; the top of the lens is for far away, the bottom of the lens is for reading. The disadvantages of bifocals are: a) they only correct 2 distances; distances between those 2 are not "covered"; b) the appearance of the "line" bothers some people. Today, most multifocals are progressives(below, right). The advantage of progressives (in addition to the obvious cosmetic advantage) is that all distances can be focused by the lens ... and there is therefore no focus "jump", making the vision more natural. There is a "learning curve" to properly use progressives, as the correct focal length must be "pointed" to the object of interest. If you wear glasses all day, you will probably prefer progressives ... but many options are available, including trifocals and occupational multifocals(see below). Ask one of our doctors or optical technicians which will be best for your vision needs!
Progressive lenses have a smooth transition from distance (driving) to intermediate (arm's length) to near (reading). Because the transition is smooth, all distances are covered and there are no abrupt changes. So, not only are progressives more attractive, but they give you vision at all distances. As you can see from the diagrammatic image to the right, there is a "corridor" of vision from top (distance) to bottom (near), so there is a learning curve when first using progressives. With new technology (we use the highest quality Varilux and Zeiss lenses), the adjustment is faster and the quality of vision is the best!
Occupational lenses are designed for special functions, such as computer, piano, coin collecting, etc. Occupational lenses may be in single vision, bifocal, trifocal, or progressive designs. The lenses are carefully matched to the specific functions that you need. Our doctors have much experience in designing these occupational lenses, which can make life much easier for those of you with special vision needs!
Various materials are used to make eyeglass lenses. The materials differ in thickness, weight, impact resistance, color, UV absorption ... even in clarity. It is important to match the lens to your Rx and your vision needs. Some examples are:
Standard plastic: The most common material: inexpensive, very clear, very tintable, available in all lens designs. 1.56 mid-hi index: Slightly thinner than standard plastic, relatively inexpensive, tintable. Polycarbonate: The strongest, lightest material; thin and relatively inexpensive. Very good for use in rimless glasses. 1.60 hi-index: Very thin and light, good optics and reasonably priced. 1.67 super hi-index: Extremely thin and light. Also very strong (and therefore, also good for use in rimless glasses). 1.74 highest-index: Thinnest plastic lens made; very good for super-high prescriptions! Transitions gray/brown: Changes color in sunlight; available in many lens designs. 100% UV protective. Read about Transitions Lenses Sunsensors gray/brown: Changes color in sun; slightly thinner than Transitions. Clear glass: Extremely clear and durable, but heavier and less impact-resistant (so less popular these days). Polarized: Available in plastic, polycarbonate, or glass; protects against reflected glare remarkably well.
Some materials can be combined (such as polycarbonate and transitions); ask us about which combinations will work best for you.
Lens coatings can either "dress up" glasses or improve function. Some common coatings are:
Antireflective (A/R) treatments improve the appearance and function of glasses by allowing more light to reach you and less to reflect off the lens! A/R treatments are particularly important for optimal function of high index (thin) lens materials, which often reflect more light. Scroll down a bit to learn more about different glare free treatments. Scratchguard improves durability against scratching. Our warranty on stock scratchguard lenses is 100%, as many times as needed, for one year. We warranty special order scratchguard lenses 100% on the first pair, then 50% on subsequent lenses, for one year. Ask us if you are not sure if your lens is stock or special order. Tinting "dresses up" the lens and may improve vision comfort. Some lens materials absorb tint better than others and some "tint themselves" in sunlight (referred to as photochromic). Whether you get a light pink or amber tint to match your frame, or a sunglass grey tint to drive in daylight, we customize your tint and will adjust the amount and color of your lenses as you need and desire. UV coatings are applied to lenses when eye demands require it, and when the lens material does not automatically include it. Most newer materials (such as polycarbonate, photochromic and hi-index) have built-in UV protection. Mirror coatings are fashionable; they can either be light "flash" coatings for appearance or darker sunglass mirror coatings. The color options are almost unlimited and can make glasses fun, functional ... and fashionable!
Other options exist as well; we will help you determine which are best for you. Just talk to one of our optical specialists!
Anti-reflective (A/R) treatments are not all the same! All A/R treatments help vision and appearance, but many need special care. Varilux Crizal reduces glare best ... but also provides the best scratch resistance and is easier to clean. Our optical technicians will help you decide which A/R is best for your lens ... and YOU!
Top right: note how some A/R treatments are prone to collect dust and fingerprints ...
But Varilux Crizal A/R treatment (bottom right) is more durable (scratch resistant) and easiest to clean ...
If you have high vision demands, or are "less than gentle" with your glasses, Varilux Crizal is for YOU!
Learn all about the world's largest progressive lens manufacturer: Varilux