High Index Lenses

Combining Transition Lenses and High Index Lenses: What You Need to Know They are two technologies that have revolutionized modern eye-wear, and often lead the list of desirable options when selecting a pair of prescription eyeglasses: transition lenses and high index lenses. So can they be combined? The short answer is yes, with limitations. Let’s […]

Basically, there are three distinct areas of difference between standard and high index lenses: Thickness Weight Price High index lenses are made of a material that is capable of bending light to a stronger degree than indexes with a lower rating. Because of this, they require less physical material to produce a prescription. Therefore, high […]

Traditional lenses – the kind that have been around for centuries – form a spherical shape. This means the curve they follow is the same across the length of their surface. The degree of curvature will vary with the lens material and prescription, but the curve itself is cupped and completely round. Spherical and Aspheric […]

After exploring your options, you may decide to select high index lenses for a number of reasons. Perhaps you have a strong prescription and want to reduce the distortion caused by standard lenses. Maybe the smaller profile of a high index lens will look much better in your desired frame style. Maybe your standard lenses […]

Anything over a 1.60 index can generally be described as “high index.” Lenses at 1.74 and beyond fall into the category of ultra high lenses. Those who have extremely high prescriptions (plus or minus 6.00 D or more) experience the greatest benefits from the reduced weight and thickness of high or ultra high index lenses. […]

Transition lenses and high index lenses are two of the better technologies of modern eye-wear. Transition (or photochromic) lenses automatically darken when exposed to the ultraviolet light of the sun and revert back to clear at night or indoors. This ability virtually eliminates the bother and expense of purchasing and switching between two separate pairs […]

The advent of high index lenses allows for greater flexibility in frame selection, especially in the case of strong prescriptions. The nature of high index glass or plastic allows for the use of less material than standard glass or plastic lenses – a particular benefit for stronger prescriptions, since high index materials can form these […]

Wondering whether high index lenses are worth all the hype? High Index Lenses: The Advantages High index lenses are becoming increasingly popular as more and more people are wearing them and enjoying the thinness, light weight, and comfort that come with them. But what are all the advantages, and are they worth the higher price […]

1.70 and 1.74 prescriptions easily fall into the “high index” category, which means consumers of corrective eye-wear in these indices can take advantage of the benefits of high index lenses. To understand those benefits, let’s examine how your lenses work and are measured. High Index Lenses in 1.70 and 1.74 Lenses correct vision by refracting, […]

High index lenses are more expensive than regular lenses… are they for me? Should I Get High Index Lenses? If you’re shopping for prescription glasses online, you may have come across high index and wondered whether this lens material is for you. There are quite a few good reasons to get high index lenses, but […]