When should I get high index lenses?

The amount of darkening that most photochromic lenses undergo depends upon how much UV radiation they’re exposed to. It’s vital that you note comparisons manufactured in this article are between high-index and polycarbonate plastics only. High-index glass is an option in some situations but will never be addressed on this page. Getting a retailer of good quality high index lenses can take a little digging. We’ve cleared the way for you with this list of reputable retailers that sell high index lenses online and in-store. If you’re unsure if you should choose these specialized lenses, talk to your optometrist or eye doctor.

• The difference high-index lenses make in turning thick glasses to thin glasses can be quite dramatic for those who have a strong prescription.
• In case a person’s eye comes with an unusual curve, values are added for cylinder and axis.
• High-index lenses are eyeglass lenses that bend light more efficiently than regular glass or plastic lenses.
• From here, you and your doctor can work together to find the right prescription and lens type to improve your vision.

FramesDirect.com provides lenses manufactured by The Essilor Group, known in the industry for having the innovative optical performance and flattest design for aesthetic appeal. If you have a very strong prescription, you should consider ultra thin high index 1.74 lenses. All high-index lenses in love with Eyeconic.com are scratch and impact resistant. These high index lenses are made to be thinner than any lens. They either use materials that have higher indices of refraction or use lenses that have tough materials suitable enough for minimum thickness. Index lenses are made with different plastic and glass materials. The

Just How Much Thinner Are High

In case you have specific lens requirements or concerns, you might feel more comfortable with in-person shopping. Similar to Zenni Optical, this direct-to-consumer eyeglass retailer offers an easy-to-use online shop. Note that the cost figures below indicate the add-on price for high index lenses, not the full total cost of lenses and frames.

High-index plastic lenses correct all sorts of refractive errors, including myopia , hyperopia , and astigmatism. The refractive index of eyeglass lenses ranges from about 1.50 to at least one 1.80. Lens materials on the low end of the range can make your glasses thicker. Materials on the high end of the range produce thinner glasses. The difference could be more noticeable the more nearsightedness or farsightedness you have. If you’ve been given a strong prescription to improve your vision, high index lenses are an optimal choice.

Lens Materials

Polycarbonate and 30% thinner than Standard with the same prescription. For higher prescriptions, this lens material and index works well due to its reduced weight and edge thickness. A lens is high-index when the refractive index exceeds that of plastic or glass, as are used in most traditional materials. When the refractive index is 1.7 or even more, the lens is usually about 50% thinner than it’s glass or plastic counterpart will be. Based on your prescription, you’ll need lenses of different diopter strengths.
Generally, the bigger your prescription, the higher the index you need. For reference, standard plastic lenses have a refractive index of just one 1.50. High index is the thinnest eyeglass lens available, in addition to being lightweight. Because these lenses tend to reflect more light, most opticians and eye doctors recommend adding an anti-reflective coating to reduce glare. To find the best frames, Felix Gray supplies the variety you want irrespective of your lens index. Coupled with our innovative lens technology, such as Blue Light filter glasses and sleep glasses, you’ll fall in love with your new pair of glasses.
Additionally it is worth noting that AR coating practically eliminates lens reflections. This makes high-index lenses look almost invisible, so other folks can easily see your eyes rather than get distracted by the reflections in your lenses. R-coated high-index lenses may also help sharpen your night vision—a crucial advantage for people who frequently drive at night. So if thinness is a priority for you, be certain that your frames may also be as thin as possible. Apart from that, your pupils should be close to the center of the lens opening in the frame. Impact-resistant lenses certainly are a good choice for everybody, but especially ideal for kids and the ones who do sports. High-index lenses have a low Abbe value, which means they disperse more light than traditional lenses.

• If you’re like most, you probably put a lot more thought into selecting your frames than your lens material.
• High-index lenses are constructed of a special plastic-type material that allows your eyeglasses to be thinner and lighter because they bend light better.
• Displayed after each of these letters is a numerical value with either a plus (+) or minus (-) sign.
• Assuming you have a prescription less than +/- 2.00, you likely won’t see much difference between standard lenses and high-index lenses.
• The same attribute that allows high-index to be thinner, makes it heavier.
• Determine which lens is most beneficial for you based on your prescription, frame type, and lifestyle.

Prescription eyewear corrects vision by bending light to land in the proper spot on your retina if your eyes can’t quite see clearly on their own. Lenses with a higher refractive index can bend light better than standard lenses. Regular lenses have an index of around 1.50, which a lot of people find suitable if they have mild or moderate prescriptions.

Thinner lenses require less lens material, which reduces the entire weight of the lenses. Lenses made of high-index plastic are lighter than the same lenses manufactured in conventional plastic, so they’re convenient to wear.