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If you have a very strong prescription, you should consider ultra thin high index lenses.
High Index lenses are the thinnest, flattest, and most cosmetically appealing lenses ever developed.
These ultra thin lenses are thinner than plastic, Polycarbonate or Trivex. High index lenses, offering you the ultimate in technology and cosmetics. The thinner lens is much more flattering, reducing the distortion that high prescriptions cause when made with lower quality lenses.
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Here are all the reasons why high index glasses are great:
“High index” is essentially describing a lens that is better at bending light (i.e. making a prescription with a thinner lens) than other lenses made of a similar material. Because they are more efficient at bending light, high index lenses require less material than standard index lenses to make a prescription, resulting in a thinner lens.
High index is better because it is thinner, lighter, and more scratch resistant than standard index lenses.
High index lenses are the thinnest, lightest, and most aesthetically pleasing lenses around. They have a much thinner profile, making your prescription look considerably weaker and your lenses less thick and heavy. They are more scratch-proof than other lens materials, and they reduce the eye distortion that strong prescription wearers deal with, which causes their eyes to appear larger or smaller than they are through their prescription lenses.
High index lenses are denser than standard lenses, which has a few negative consequences. High index lenses are more reflective than standard lenses, so they cause glare. This can be easily solved with an anti-reflective coating. High index lenses also cause some aberration, or slight blurring, with very strong prescriptions. This is more noticeable with extremely high indexes, such as high index glass. Most people do not notice aberration with high index plastic.
There are many high index materials available. Your choice should depend upon your budget, the strength of your prescription, and your tolerance for aberration. The higher the index, the more the lenses will cost. The stronger your prescription, the thicker your lens is and therefore the higher your index will need to be to make your lenses not look “strong.” The lower your tolerance for aberration (blurriness), the lower the index you should choose. Most people prefer high index plastic, which has less aberration than glass, and the most popular “middle ground” material is 1.70 High Index Plastic. Your choice of material will also depend upon the lens color you want, as different colors are only available in certain high index materials.
Most people who get high index plastic lenses never go back to standard index lenses. The main attraction of high index for most people is the slim profile that high index lenses offer. If you like the idea of having glasses that make your prescription look much weaker than it is, and if you want glasses that don’t distort your eyes by making them seem smaller or larger than they are, then high index is worth the money.
Yup, just order your lenses on our “Send Us Your Frames” page here.
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