May 31, 2023 ... Because they are typically processed to be as thin as possible, and because high index is a plastic that will crack when enough force is applied ...Most polycarbonate lenses have a refractive index of 1.59. This figure means that they can be around 10 percent thinner than other lenses, including glass. By contrast, 1.67 high-index lenses are about 30 percent thinner and lighter, and 1.74 single-vision lenses are 35 percent thinner for the same prescription strength.Nov 23, 2022 · From high-index and polycarbonate lenses, there's a lot to consider when choosing a lens type. That’s why we created this guide on high-index vs. polycarbonate lenses. Focusing on these two commonly used lens materials, you’ll learn their pros and cons to decide which eyeglass lenses you should choose. High-Index vs. Polycarbonate Lenses 101 May 27, 2009 · soft for a drill mount application, so you would have to choose a. polycarbonate or high-index MR-7 or MR-10, 1.60 or 1.67 lenses. Your prescription is very mildly common, so unless you are extremely. concerned with edge thickness or eye minification, then you will be. just fine with nothing higher than 1.61. I have a +4.25 prescription, should I get 1.67 or 1.74 index lenses for glasses? Would there be any noticeable difference in thickness? I'm also concerned about the distortion/warping - my current pair is just a standard lens (not high-index) and there is a noticeable warping effect when looking at my eyes from a side angle, I think this is due to how thick the …3 days ago · Birefringence is a measurement of the difference between the two refractive indices in gems that are doubly refractive, and it ranges from a low of .003 to a high of .287. The following chart lists the refractive indices for 215 varieties of gemstones. Refractive Index Chart of all Gemstones Gemstone Between -4.00 and -6.00 we’d recommend a lens with a refractive index of 1.67, and any prescriptions over that a lens with a refractive index of 1.74 will be more suitable. If your prescription is over -5.00 we’ll need an accurate measurement of the distance between your pupils, often referred to as the PD or pupillary lens distance. The lens index describes the thickness of your lens. At Eyebuydirect, we use the following lens materials for these lens indexes: 1.5 – Plastic; 1.57 – Plastic; 1.59 – Polycarbonate; 1.6 – Plastic; 1.67 – High-index 1.74 – High-index LEARN MORE: Find the recommended lens index for your vision prescription. High-Index Lenses vs ...1. Higher satisfaction declared by wearers compared to premium clear lenses. Transitions Optical, Quality of Vision & Vision Experience Test, U.S. 2019, (N=146) - From UV and blue-violet light compared to premium clear lenses.Based on achieving the highest weighted composite score among main everyday photochromic lenses across measurements of …Transitions® XTRActive® Polarized™ lenses range from $121.95 to $214.95 for Single Vision and from $168.95 to $261.95 for progressives. If you are looking for an even more affordable option, Zenni offers its own line of photochromic lenses, starting at $38.95. Another option is Vision-Ease LifeRx® lenses, starting at $72.95.May 27, 2009 · soft for a drill mount application, so you would have to choose a. polycarbonate or high-index MR-7 or MR-10, 1.60 or 1.67 lenses. Your prescription is very mildly common, so unless you are extremely. concerned with edge thickness or eye minification, then you will be. just fine with nothing higher than 1.61. Jan 11, 2023 · In the most basic of terms, the higher the index of refraction, the more reflections the material creates, and the more the wearer would benefit from AR to minimize reflections. When comparing CR-39 to 1.74 …May 27, 2009 · soft for a drill mount application, so you would have to choose a. polycarbonate or high-index MR-7 or MR-10, 1.60 or 1.67 lenses. Your prescription is very mildly common, so unless you are extremely. concerned with edge thickness or eye minification, then you will be. just fine with nothing higher than 1.61. Jun 29, 2022 · The difference is in the thickness. 1.74 high-index lenses are up to 10% thinner than 1.67 high-index lenses. As a reference, 1.67 high-index lenses are recommended for strong prescription with an SPH correction between +/-7.00 and +/-9.00, and a CYL correction between +/-3.25 and +/-4.00. 1.74 high index lenses are known “as thin as possible ... The Consumer Price Index is the best known indicator of inflation. Learn 13 facts about the Consumer Price Index to better understand the role it plays in economics. The Bureau of ...May 31, 2023 ... Because they are typically processed to be as thin as possible, and because high index is a plastic that will crack when enough force is applied ...방문 중인 사이트에서 설명을 제공하지 않습니다.Table of Contents hide. 1 Knowing The Difference Between 1.50 And 1.74. 1.1 What does lens index mean? 1.2 1.50 Standard Index. 1.3 1.56 Mid-Index. 1.4 1.59 Polycarbonate. 1.5 1.61 High Index. 1.6 …Our 1.74 high index lenses are offered at a more affordable price with a long list of value adds: anti-scratch, and 100% UV protection. Available at $76.95. Our 1.74 high index digital free form lenses use leading technologies in the eyeglasses market. Now at $84.95. Our 1.74 digital free form progressive (no-line, multi-focal) lenses …Chúng được chiết suất từ nhựa High Index Plastic, giúp tròng kính trở nên mỏng và nhẹ hơn. Essilor cung cấp nhiều phiên bản tròng kính 1.67 giá rẻ khác nhau, bao gồm Essilor Crizal Sapphire HR 1.67 AS và Essilor Crizal Prevencia 1.67 AS.Do you know the differentiation between various lens flash? Go this article to learn more about books of refraction measurements for my eyeglasses. x Blue Light Blocking Glassware BOGO 40% OFF BOGO 40% OFF. WOMEN. Women's Glass. All Women's Glasses. Cat-Eye Eyeglasses. New Arrivals. Best Sellers. $5. ...In this section, we will show you the differences between 1.67 high index lenses and 1.74 high indexes. 74 high index lenses are thinner and lighter than 1.67 high index lenses. 74 high index lenses are expensive than the 1.67 high index lenses. Both 1.67 and 1.74 high index lenses can reduce the eye distortion caused by strong …Buy High Index Lenses. Trivex has a low index of 1.53, similar to standard plastic. High index plastic’s index ranges from 1.67 to 1.74, making it considerably thinner and more lightweight than Trivex, especially in higher prescriptions. High index plastic has similar scratch resistance to Trivex.You have probably heard of the Dow Jones Industrial Average and the S&P 500, but another important index is the Russell 2000 Index. Of course, the stock market is complex, but inde...Pros and Cons of 1.67 High Index Lenses. Pros: Thinner and lighter than 1.61 lenses; Suitable for individuals with stronger prescriptions; Aesthetically pleasing; Cons: Higher cost compared to 1.61 lenses; May not be suitable for all frame styles; …Light-reactive lens that blocks 100% UV rays and filters harmful blue light. Transitions® Signature® Gen 8™. Fully clear indoors, quickly darken outdoors, block 100% UV rays, and filter harmful blue light. Transitions® XTRActive Polarized™. Clear with a hint of protective tint indoors, dynamically polarize to …Calculate BMI by dividing the weight by the height (m) 2. 95.45 kg ÷ 3.63 m 2 = 26.3 kg/m 2. Example 2: What is the BMI for Mr. Smith weighing 210 pounds and 5 feet, 4 inches tall? 210 pounds = 95.45 kg. Calculate the height in meters: 5 feet, 4 inches = 64 inches. 64 inches x 2.54 cm/inch = 162.56 cm.Confused about Trivex & High Index. I ordered a pair of glasses from Zenni for the first time, and while thrilled with the frames, I simply couldn't see out of the lenses - especially while driving at night. I took them to my optometrist (who does not sell eyewear), and my heart sank when he told me that both the lenses & my … Starting with 1.61 vs 1.67 high index lenses — the 1.67 lens is extremely thin whereas despite still being stylish, the 1.61 lens is extra-thin. The 1.67 lens is a great choice for extra-strong prescriptions. ok, without bombarding you with boring science crap, go for the 1.67. A bit more info: the ABBE value difference between a 1.6 and a 1.67 will be negliagble and very nearly no-one would notice the decrease in optical "quality", however the difference in thickness would be noteworthy. A 1.67 will give a flatter front surface, and a … Edit2, seems like trivex 1.53 is still clearer than the 1.57 zenni offers according to their Lens Index & Material Guide, but it still doesn’t tell me what the 1.57 is made of, they only specify trivex fo 1.53, CR39 for 1.5, polycarbonate for 1.59 and everything high index is “MR” As of this review, there are over 800 options for Men, over 1,100 options for Women, just under 100 options for Boys, and over 100 options for Girls. Pricing is all over the place depending on the desirability and material of the frames, but the prices start as low as $6.95 and go as high as $45.95 (that’s the most …Feb 27, 2019 · With free-form lenses (also called digital high-definition lenses), the fabrication of the lenses from wearer's eyeglass prescription is optimized with computer-controlled surfacing equipment that is much more precise than conventional tools.. In fact, free-form technology can surface lenses in power increments of 0.01 diopter (D), …Feb 16, 2022 · 1.61 High index lenses are suitable for the following prescriptions: SPH correction of +/- 4.25 and +/- 6.75, and; CYL correction of +/- 2.25 and +/- 3.00. 1.67 High Index. The 1.67 high-index lenses are very thin, even surpassing the 1.61 high-index lenses. This lens index is a great option for those with a super prescription. Between -4.00 and -6.00 we’d recommend a lens with a refractive index of 1.67, and any prescriptions over that a lens with a refractive index of 1.74 will be more suitable. If your prescription is over -5.00 we’ll need an accurate measurement of the distance between your pupils, often referred to as the PD or pupillary lens distance. Jul 4, 2020 ... If u want to make these type of spectacles then whatsapp your power and Contact through whatsapp 9818540760. Link to watch special videos ...Nov 25, 2020 · A high-index lens may be recommended if your optical prescription is above 2.00 diopters. High-index lenses have a refractive index above 1.50— ranging from 1.53 to 1.74. The image below compares the lens thickness of a regular plastic lens (1.50) to the most commonly prescribed high-index lenses. Note: The higher the refractive index, the ... Aug 16, 2019 · The lens index describes the thickness of your lens. At Eyebuydirect, we use the following lens materials for these lens indexes: 1.5 – Plastic; 1.57 – Plastic; 1.59 – Polycarbonate; 1.6 – Plastic; 1.67 – High-index 1.74 – High-index LEARN MORE: Find the recommended lens index for your vision prescription. High-Index Lenses vs ... 1.67 High Index. The 1.67 High-Index lenses are 30% thinner than 1.50 Standard Index lenses with the same prescription. For higher prescriptions, this lens material and index works well due to its reduced weight and edge thickness. 1.74 High Index. 1.74 High-Index lenses are the thinnest and lightest lenses you can buy from …방문 중인 사이트에서 설명을 제공하지 않습니다. Between -4.00 and -6.00 we’d recommend a lens with a refractive index of 1.67, and any prescriptions over that a lens with a refractive index of 1.74 will be more suitable. If your prescription is over -5.00 we’ll need an accurate measurement of the distance between your pupils, often referred to as the PD or pupillary lens distance. The Consumer Price Index is the best known indicator of inflation. Learn 13 facts about the Consumer Price Index to better understand the role it plays in economics. The Bureau of ...Sep 12, 2023 · BY Dr. Sophia Moh. IN Lenses. Sep 12, 2023. High index lenses have revolutionized the world of eyewear. But what exactly are they? High index lenses (1.61, 1,67, 1.74) are lenses that are made from materials with a higher refractive index than traditional lenses (1.50 Standard Index). Dec 6, 2021 · In this section, we will show you the differences between 1.67 high index lenses and 1.74 high indexes. 74 high index lenses are thinner and lighter than 1.67 high index lenses. 74 high index lenses are expensive than the 1.67 high index lenses. Both 1.67 and 1.74 high index lenses can reduce the eye distortion caused by strong prescriptions, 1 ... 방문 중인 사이트에서 설명을 제공하지 않습니다.Feb 22, 2023 · There are a number of different lens index lenses available, with some better suited to certain prescriptions than others. You’ll generally find lens index in the following sizes: 1.5 Standard. 1.56 Mix-Index. 1.57 Thin and Light Index. 1.59 Standard Polycarbonate and High Index. 1.74 High Index Lenses are the thinnest and lightest. Refractive Index 1.60 MR-8™/MR-160DG™. This lineup is standard high R.I. lens materials. MR-8™ has a high abbe number, means minimal chromatic aberration in the visual periphery. and an ideal balance of properties such as impact resistance and thermal resistance. MR-160DG™ is made from plant-derived lens materials … Buy High Index Lenses. Trivex has a low index of 1.53, similar to standard plastic. High index plastic’s index ranges from 1.67 to 1.74, making it considerably thinner and more lightweight than Trivex, especially in higher prescriptions. High index plastic has similar scratch resistance to Trivex. Plastic High Index lenses available from ThinLenses. 1.5 Plastic High Index Lenses £ 38.00. 1.61 Plastic High Index Lenses £ 57.00. 1.67 Plastic High Index Lenses £ 89.00. 1.74 Plastic High Index Lenses £ 139.00. All our lenses come with free anti reflective coating, scratch resistant coating and UV400 coating.Aug 10, 2019 ... These are the same frames and same Rx(-17) with 1.56, 1.67, 1.74 index lenses. Sort by: InverseMeters. • 4 yr. ago. Frame size and shape is going to have a bigger effect on thickness than index. The difference between 1.60 and 1.67 is going to be minimal, most likely less than a millimeter. 1.67 will cost more and have more abberations. Unless the frame is huge and your eyes are narrow set 1.60 would most likely better. The Basic Difference Between 1.67 and 1.74 High Index Lenses. Because of the above reason, many individuals who wear glasses choose high index lenses as their …Here’s a quick guide to help you choose the right hi-index lens based on your prescription: Hi-Index 1.61: Ideal for prescription powers between +/- 3.00, offering significant reduction in lens thickness and weight. Hi-Index 1.67: Perfect for prescription powers ranging from +/- 3.00 to +/- 5.00, ensuring a sleeker profile without ...In your case though, I wouldn't recommend it. While I would also recommend 1.74 hi index for your Rx strength, having the ability to make adjustments and such needed is going to make a world of a difference for you. In your case, having your eyes centered on the lens is going to be more important than for someone with a … So I figured I'd order another pair from Zenni and see how I like them. The thing is, I'm torn between the 1.61 and 1.67 high index range. My right eye is still safely in that "1.61 is fine" range, but the left eye obviously requires a thicker lens. Because they wouldn't be my day-to-day glasses, however, I'm leaning towards getting the cheaper ... Easier adjusting to the lenses by wider corridor, less distortions and smoother vision Dr. Lens Change Inc. $239.00. Essilor Advanced Digital HD Progressive 1.67 Index + TD2 Super tough anti scratch Essilor Premium progressive lenses with TD2 Super Tough Anti Scratch coating. The most Strongest & durable Anti Scratch …ZEISS Single Vision AS 1.67 is an extremely thin single vision lens in the range of plastic lenses available from ZEISS. It is extremely light and a very special lens in many ways. In 1997 ZEISS was Europe’s first manufacturer to succeed in polymerizing a plastic lens with the super-high index 1.665 for batch production.Index of Refraction is the speed of light in a vacuum divided by the speed of light in a given material. The resulting number (1.5, 1.6, 1.67, 1.74) is referred to as the “index.”. The higher the number, the more light is slowed down or bent. This means high-index lenses bend light at steeper angles than standard-index, hard resin …The difference in thickness is less than 1mm. Better to size down slightly in the frame to decrease thickness. At nearly any frame size with your RX, the thickness difference will be negligible. Probably around .5 mm at the very thickest point, nearly impossible to see. The optics out of a 1.67 lens is much better than 1.74.Knowing The Difference Between 1.50 And 1.74 Table of Contents hide 1 Knowing The Difference Between 1.50 And 1.74 1.1 What does lens index mean? 1.2 1.50 Standard Index 1.3 1.56 Mid-Index 1.4 1.59 Polycarbonate 1.5 1.61 High Index 1.6 1.67 High Index 1.7 1.74 High Index 1.8 What factors should I consider when choosing …Sep 12, 2023 · BY Dr. Sophia Moh. IN Lenses. Sep 12, 2023. High index lenses have revolutionized the world of eyewear. But what exactly are they? High index lenses (1.61, 1,67, 1.74) are lenses that are made from materials with a higher refractive index than traditional lenses (1.50 Standard Index). Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. Polycarbonate lenses also provide you with protection from 100% of the harmful UV rays from the sun. I generally recommended people with prescriptions anywhere between +/-0.50 to +/-4.00 to go with …Hi, I've decided to go for the cheap approach of getting lens with Zenni for my headset. When I selected the lens I was asked if I wanted to put blue light and UV block (Blokz) among other choices. At first, I was like "Hell yeah, protect my eyes from this demonic blue light !" but then I started to wonder if this would affect my …Oct 15, 2019 · 眼镜片中的1.56、1.60还有1.67指的是镜片的折射率，有通称1.50（包括1.499、1.500、1.501、1.502），1.56（包括1.552、1.555），1.60（包括1.591、1.600、1.604），1.67（包括1.665），1.70（包括1.706），1.74（包括1.737、1.738）。 1.74折射率是树脂镜片的极限，玻璃可制作出高达1.80、1.90的折射率镜片。A lens is high-index when the refractive index exceeds that of plastic or glass, as are used in most traditional materials. The general range of refraction is around 1.53 to 1.74. When the refractive index is 1.7 or more, the lens is usually about 50% thinner than it’s glass or plastic counterpart would be.Feb 24, 2021 · 1.61 high index lenses. The 1.61 high index lenses are thin and stylish. They are an excellent choice for strong prescriptions, including -4.25 to -6.75 and +4.25 to +6.75. This index works well with full-rim plastic and acetate, full-rim metal, half-rim, and rimless frames. 1.67 high index lenses. The 1.67 high index lenses are extremely thin ... Feb 22, 2023 · There are a number of different lens index lenses available, with some better suited to certain prescriptions than others. You’ll generally find lens index in the following sizes: 1.5 Standard. 1.56 Mix-Index. 1.57 Thin and Light Index. 1.59 Standard Polycarbonate and High Index. 1.74 High Index Lenses are the thinnest and lightest. 1.61 vs. 1.67 vs. 1.74 High Index Lenses. 1.61 High Index Lenses. Moderate Prescription Strengths: Ideal for those with mild prescriptions (less than +/- 2.00) Thinner and Lighter: Offers a significant reduction in thickness and weight compared to standard 1.50 CR39 lenses.Jul 7, 2022 · 1. Trivex lenses have an index of 1.53 which is lower than high index plastic having 1.67 to 1.74. The higher the index, the more lightweight and thinner the lens will be. 2. In terms of resistance to scratch, both lenses are the same. 3. Trivex lenses are more impact resistant than high index lenses.1 day ago · SPX | A complete S&P 500 Index index overview by MarketWatch. View stock ... Short sellers increase bets against high-flying tech stocks Mar. 25, 2024 at 2:05 p.m. ET by Joseph Adinolfi. U.S ...Table of Contents hide. 1 Knowing The Difference Between 1.50 And 1.74. 1.1 What does lens index mean? 1.2 1.50 Standard Index. 1.3 1.56 Mid-Index. 1.4 1.59 Polycarbonate. 1.5 1.61 High Index. 1.6 …Blue Light Glasses. Customize your Blokz ® blue light blocking glasses with lenses starting at just $16.95, and experience exceptional eye protection tailored to you. In today's digital world, screens, artificial light, and the sun are unavoidable. But you can defend your eyes against excessive blue light exposure with Blokz ® lenses.Arachnophobics, worry not — SPDRs aren’t at all what they sound like, and they’re certainly not as scary. If you’re in the process of learning more about investing, you might have ...The following are the most common materials used in eyeglass lenses from thickest to thinnest. Anything over a refractive index (how well the material bends light) of 1.52 is considered a high-index lens: CR39 (standard) plastic – 1.50. Crown (standard) glass – 1.52. Trivex – 1.53. Mid-index plastic – 1.54 to …Apr 4, 2022 ... If you have a mid to high prescription, stick to the thinner lens options at 1.67 index and 1.74, which is the thinnest and lightest of the two.Frame size and shape is going to have a bigger effect on thickness than index. The difference between 1.60 and 1.67 is going to be minimal, most likely less than a millimeter. 1.67 will cost more and have more abberations. Unless the frame is huge and your eyes are narrow set 1.60 would most likely better. That said I have fit -10s in trivex ...Home optical glass White Single Vision Lens 1.67 Hi Index White Lens Single Vision 1.50 Hi Index ৳ 250.00 ৳ 200.00. Back to products Crizal®UV Espace Digital Smart PROGRESSIVE Hi Index 1.50 ...Feb 25, 2021 · High-index lenses are available in a vast range of indices, all of which can be found in the range of 1.53 to 1.74. Lens index is determined by a measurement of light refraction and lenses with a refraction index of 1.70, or higher are up to 50% thinner than standard plastic lenses. Determining which lens is right for you can be a bit confusing ... I'm buying glasses for the first time from Zenni and 1.74 high index lenses are recommended for my prescription (-12.50/-13.25). They also have UV/blue light blocking lenses they call Blokz, but they only come in a 1.67 high index lens. I get migraines at least once every week or two and become sensitive to light during these.
Feb 5, 2024 · People with higher-order refractive errors, typically +4.00 diopters or more, are ideal candidates for aspheric lenses. The difference between conventional and aspheric lenses is most noticeable for farsighted people. Aspheric lenses also work for people who struggle with: Nearsightedness (myopia) Astigmatism; Age-related …. Daysmart appointments
People with diabetes and others who have been advised to follow a low-glycemic index diet need to make sure the foods they eat don’t increase blood sugar by too much. This guide wi...The 1.67 high-index lens material is a great choice for prescriptions between +/-6.00 to +/-8.00 sphere and above 3.00 cylinder. The lenses are thinner and ...The higher the index the lighter the lens, the bigger the prescription and frame the heavier the lens. Your prescription is not that high and these frames are not super huge so I really doubt it would make a noticeable difference. If you were my patient I would highly recommend Trivex.Calculate BMI by dividing the weight by the height (m) 2. 95.45 kg ÷ 3.63 m 2 = 26.3 kg/m 2. Example 2: What is the BMI for Mr. Smith weighing 210 pounds and 5 feet, 4 inches tall? 210 pounds = 95.45 kg. Calculate the height in meters: 5 feet, 4 inches = 64 inches. 64 inches x 2.54 cm/inch = 162.56 cm. Thinner and lighter than our basic lenses, high-index lenses are recommended for those with combined Rx powers over -3.00/+2.00. High-index lenses have reduced edge thickness for nearsightedness and reduced center thickness for farsightedness. Choose from 1.61, 1.67 or 1.74 high index lenses. All Zenni high-index lenses are made with MR™, a ... Glass lenses available from ThinLenses. 1.5 Glass High Index Lenses £ 82.00. 1.7 Glass High Index Lenses £ 146.00. 1.8 Glass High Index Lenses £ 223.00. 1.9 Glass High Index Lenses £ 274.00. All our lenses come with free anti reflective coating, scratch resistant coating and UV400 coating.May 31, 2023 ... Because they are typically processed to be as thin as possible, and because high index is a plastic that will crack when enough force is applied ...Aug 16, 2019 · The lens index describes the thickness of your lens. At Eyebuydirect, we use the following lens materials for these lens indexes: 1.5 – Plastic; 1.57 – Plastic; 1.59 – Polycarbonate; 1.6 – Plastic; 1.67 – High-index 1.74 – High-index LEARN MORE: Find the recommended lens index for your vision prescription. High-Index Lenses vs ... Table of Contents hide. 1 Knowing The Difference Between 1.50 And 1.74. 1.1 What does lens index mean? 1.2 1.50 Standard Index. 1.3 1.56 Mid-Index. 1.4 1.59 Polycarbonate. 1.5 1.61 High Index. 1.6 …Nov 12, 2020 ... Uncut Glasses Side Thickness Compare 1.56 vs 1.60 vs 1.74 | Crizal 1.74 Lenses | High Index Lenses.How Much Do High Index Lenses Cost? · 1.60 High Index Lenses are on average 20% thinner than ordinary CR39 plastic. · 1.67 High Index Lenses are on average 35% ....The difference between 1.60 and 1.67 is going to be minimal, most likely less than a millimeter. 1.67 will cost more and have more abberations. Unless the frame is huge and …Polycarbonate 1.59 Lenses: The most impact-resistant lenses for eyeglasses. They are 22% thinner than standard lenses and are recommended for children and sports, as well as prescriptions of +/- 4.00. 1.6 Index Lenses: High index lenses up to 25% thinner than the standard lenses. Recommended for prescriptions of -4.00 to +3.00. Sort by: InverseMeters. • 4 yr. ago. Frame size and shape is going to have a bigger effect on thickness than index. The difference between 1.60 and 1.67 is going to be minimal, most likely less than a millimeter. 1.67 will cost more and have more abberations. Unless the frame is huge and your eyes are narrow set 1.60 would most likely better. .