Should I get Trivex lenses or high index lenses. When I got new glasses 5 years ago, I specifically asked for Trivex because it's supposed to have low chromatic aberration. Debating on Trivex or high index I have an OD of -8 & OS of -7. It should be noted that I didn't tell the optician my RX since I didn't have it with me. If you don't mind it a little thick and prefer function over fashion go with Trivex and save on money. I don't think there is a wrong option, but if you have to have your lenses as thin as possible go with high index. It has a lower Abbe value, so there will be a lot more chromatic aberration. Other high-index materials are classified by numbers. This allows for a thinner lens than a CR-39 lens. Though it's not guaranteed you'll even notice the difference. I don't think there is a wrong option, but if you have to have your lenses as thin as possible go with high index. High Index Glass: 1.70: 39: Plastic CR-39: 1.49: 58: Mid Index Plastic: 1.54: 47: Mid Index Plastic: 1.56: 36: High Index Plastic: 1.60: 36: High Index Plastic: 1.66: 32: Trivex: 1.53: 43: Polycarbonate: 1.58: 30: MR-174 1.74 32. Anything Below -2.00 or -.175 Diopters, Doesn’t Require High Index Lenses. Glasses become a burden if you are … ABBE VALUE. Trivex is optically superior to polycarbonate and it is lighter. The majority of high-index materials have a lower Abbe value, however, meaning that dispersion—when white light is separated into its color components—may be a problem. Mid-index: 1.54 ≤ n d < 1.60; High-index: 1.60 ≤ n d < 1.74; Very high index: 1.76 ≤ n d; This is a general classification. In the past 20 years, in response to the demand for thinner, lighter eyeglasses, a number of lens manufacturers have introduced high-index plastic lenses. Trivex is not as thin as high index but it is less dense and so it ought to be less heavy. Trivex hates to be rolled and polished at all, though, which is a consideration. High Index 1.61, 1.67 and 1.74 PLASTIC VS. HI-INDEX LENSES. It has better impact resistance and naturally blocks UV (granted, most good AR coatings block UV anyway). I'm getting my first set of progressive lenses, and the optician recommended zeiss premium progressive high index lenses (1.67 index) for the best optics. In terms of thinness, this lens index is thinner than 1.50 lenses. High-index plastic lenses. Trivex will be thicker than poly or high index north of a +/-5 (I sit at a -375OU and trivex is what cuts out thinnest for me) but it will still have excellent clarity. I'd ask for a 1.6 high index lens. Refractive Index Trivex lens material has a 1.53 index of refraction. I've had patients with scripts as high as -9 that liked Trivex because of the crispness it gives. 1. For the best outcome, research all high-index options before deciding which one to use. As for Zeiss lenses, yes they are worth their price, and also their coatings are worth their price. High index materials tend to have lower Abbe numbers. Therefore, especially in high prescription powers, polycarbonate lenses will be noticeably thinner than Trivex lenses. Trivex is able to pass the ANSI Z87.1 High Velocity Impact Test. Therefore, consider this lens for … Trivex is an improvement over Polycarbonate. Like polycarbonate it provides 100% UV protection and it is extremely durable. Polycarbonate vs. Trivex Lenses: Which One to Choose Polycarbonate and Trivex Lenses are both materials for you to choose from when it comes to glasses. Depends on what the patient wants from their glasses tbh. I have Been wearing strong glasses for almost 50 years now so 'coke bottle' lenses do not bother me as long as my vision is crisp and clear! So really $180-$250 less expensive depending on the coating. Polycarbonate is also even more shatter resistant, making it ideal for activities that have a strong risk of high impacts to your lenses. My prescription is -5 sphere -0.50 cylinder axis 104 add +1.25 OD and sphere -5 cylinder 0 axis 0 add +1.25 OS. Close. Are they really worth the extra expense? Trivex vs Polycarb. This video explains some of the differences between trivex and poly. Still, Trivex lenses are thinner than regular plastic eyeglass lenses, which have a refractive index of 1.50. Trivex has a refractive index of 1.53. I don't necessarily need the thin lenses (the frames are relatively thick plastic ones). the optician recommended zeiss premium progressive high index lenses (1.67 index) for the best optics. Press question mark to learn the rest of the keyboard shortcuts. The one who wins is you. My glasses are 1.61 high index and have fairly serious distortion at the sides. Their strength and impact resistance makes them a great option for kids’, rimless frames, sports goggles and safety glasses, or anyone who is rough on their glasses. A color fringe may be noted around a light source or around an object. Weight. Thickness: Polycarbonate has a higher index of refraction than Trivex (1.58 vs. 1.53), so polycarbonate lenses are about 10 percent thinner than Trivex lenses, but as you see in the video, the difference may not even be noticeable. 1. It is thinner than trivex, and still has very good optics (better than 1.67). Hi-index lens material reduces lens thickness, making these lenses more comfortable and better looking by minimizing the size of visible lens edges for nearsighted wearers and reducing the magnified “bug eye” appearance associated with farsighted wearers. than ultra high index (1.66 and 1.74) materials. Trivex lenses are, molecule for molecule: Eight percent lighter than polycarbonate; 16 percent lighter than CR-39; 19 percent lighter than high-index. They can sharpen your sight even further if you apply an anti-glare coati… I could afford the more expensive ones but don't want to just waste money. All Crystal Vision Lenses are made in the U.S., to exacting specifications, in an Essilor laboratory, and we are able to offer them at a great price point. Trivex is a material developed in the 1990s originally for military use. I don't know much about Trivex - would that solve the distortion … As with PPG Trivex material, you can recommend PPG Tribrid lens material with confidence knowing that this new and unique high-index lens material offers similar performance benefits to Trivex material with enhanced thinness… perfect for your patients with stronger prescriptions requiring more demanding vision correction needs. Chromatic aberration is when white light is broken up into component colors. Posted by 4 years ago. Actually, I think trivex has better optics than high index. I know the optical clarity is better in trivex, but I'm concered about the thickness it will have … Press J to jump to the feed. Indexes of n d values that are ≥ 1.60 can be, often for marketing purposes, referred to as high-index. What Index Are High Index Lenses? Trivex is not as thin as high index but it is less dense and so it ought to be less heavy. Our polycarbonate lenses have a 1.59 index which, while quite thin, is more focused on durability than lightness. My RX is -4.25 sphere -0.50 cylinder 176 axis for the right, and -4.75 sphere -0.25 cylinder 4 axis for the left. Archived. Mid-index lenses, such as 1.54, 1.56, and 1.57, are thinner than glass, and nearly as strong as CR-39.

Join. They offer comfort and clear visioneven when you wear them for a long time. Additionally, they are lighter than both of those lenses despite only having a marginally larger index than polycarbonate. I was taught in school you shouldn’t you trivex above -3 or so. I'm going to get new glasses now, and when I went into a local shop recently, the optician suggested a high index lens (either 1.6 or 1.67) and said there was no reason to get Trivex, which cost 50% more. This test is a requirement for safety lenses. They are as strong, or stronger than polycarbonate for impact resistance. Though it's not guaranteed you'll even notice the difference. This ability further reduces weight and thickness. Never had a complaint from a patient about weight, and I find that it usually cuts out to be about the same as 1.67 in terms of thickness. Unless you have a pretty thick frame and pretty small, Trivex wouldn’t be too good with a -5 rx. Press J to jump to the feed. Trivex is more impact resistant than high index plastic, making it a much better choice for safety glasses or other types of glasses that need to meet certain impact requirements. Not sure whether to go with Trivex or Polycarb. A third benefit of Trivex is its relatively high abbe value. The lenses are a high-index plastic material. We offer a few different indexes on our lenses. A high-index eyeglass lens allows people with a stronger prescription to wear a lens that is lightweight and thin. When aspheric curvatures are used on lenses, even more thickness and weight reduction can be achieved. Trivex has a lower specific gravity than polycarbonate, making Trivex lenses about 10 … On the other hand, polycarbonate lenses have a higher index of refraction than Trivex lenses (1.58 vs. 1.53). However, if your prescription exceeds -/+6.00, you should consider a high index 1.67 lens or Varilux Physio Trivex lens in order to minimize lens weight and thickness. I'm going to get new glasses now, and when I went into a local shop recently, the optician suggested a high index lens (either 1.6 or 1.67) and said there was no reason to get Trivex, which cost 50% more. Our 1.6, 1.67, and 1.74 index lenses can all be considered high index. What is the advantage to a high index lens over Trivex, besides being thinner? This lower specific gravity in mid range prescriptions, such as +/-3.00D to +/-6.00D could create a lighter weight lens than by using a more expensive higher index material. Polycarbonate has a higher index of refraction than Trivex (1.58 vs. 1.53), so polycarbonate lenses are about 10 percent thinner than Trivex lenses. The higher the number, the thinner and lighter the lens. However, the clarity in polycarbonate lenses is slightly less than Trivex and they tend to scratch more easily. The less expensive option he said I could also do would be zeiss trivex, which would cost $450 for the lens and he said doesn't necessarily need an antireflective coat. Compared with polycarbonate lenses, Trivex® is a premium material that provides crisper vision and is 10% lighter. Technology is evolving, and like any new material that appears, trivex lenses bring an addition to the older polycarbonate eyeglass lenses. It can also be surfaced down to a center thickness of 1.0mm. With my current glasses, which are high index, I get a lot of chromatic aberration, and I understand this has to … Press question mark to learn the rest of the keyboard shortcuts. Good optics are more important to me than cosmetic appeal. The sales pitch of “shatterproof” is just that – a pitch. He also recommended an anti-reflective coat ($150 for the higher end coat and $80 for the less expensive coat). Here is a brief comparison of polycarbonate and Trivex lenses to help you decide which lenses might be best for you: Thickness. Ultra-lightweight—Trivex features the lowest density, 1.11, of any optical-grade material on the market. High index plastic generally has a lower Abbe number than Trivex, meaning that Trivex is more optically clear and causes less distortion than high index plastic. 1.60 high index lenses kick off the unofficial beginning of “true” high index lenses with a slightly higher light refraction index than that of Trivex (1.53) and polycarbonate (1.59). If you don't mind it a little thick and … Trivex High Index Lenses. Their premium coating offers 3 years of warranty normally. Thickness: Polycarbonate lenses have a higher index of refraction than Trivex lenses, but not by much (1.58 vs 1.53). Log In Sign Up. This mid-index value enables lenses made from Trivex material to be thinner, lighter and more comfortable. 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