1.74 High Index Replacement Lenses

1.74 Index lenses bend light to a greater degree which in turn means that less material is used to achieve the desired vision correction. The biggest aftereffect of having to use less material is that the lenses become much lighter and thinner.

Rather, eyeglass lens types offer different cosmetic and lifestyle advantages to the wearer. Before we jump into the benefits and drawbacks of wearing high index lenses, we’ll go over how they are distinct from standard lenses.

What Exactly Are High Index Lenses Made Of?

High Index Lenses are an advanced kind of optical lens that provides higher prescription wearers with a slimmer and more streamlined shape. You no longer need to worry about lacking an elegant frame, and low profile lens, because you’ve got a high prescription. Perfect for anyone with +/- 2 prescriptions or more, RX-Safety uses Younger Optics lenses manufactured from high-tech plastics, which will keep them strong and affordable. 1.74 high index lenses are the only lenses available to buy that naturally includes an anti-reflection percentage. The percentage is 0.5% reflectance whereas other materials like high index plastics have a higher rate of reflectance. High index lenses, compared to CR-39, also 100% block UVA & UVB.

• For comparison, regular plastic lenses have a refractive index of just one 1.50.
• Made by Essilor, Crizal Avance may be the latest generation of anti-reflective coating.
• In comparison, lenses with strong farsighted prescriptions are thicker in the center and give your eyes a magnified appearance.
• Polycarbonate, as shown in the chart below, can be an exception.
• Aspheric lenses may also be much much lighter than standard spherical lenses.

High index lenses are thinner because they’re designed to bend light more efficiently. Generally, doctors consider eyeglasses to function as safest solution to correct your eyesight. Unfortunately, should you have a strong prescription, regular eyeglass lenses can be thick and heavy. An anti-reflective coating is put on eyeglass lenses to reduce how much internal and external reflections on a lens. This coating increases the level of light transmitted through the lens, which improves the quality of vision. Manufactured from a durable, yet lightweight hi- index plastic, Verithin lenses replace thick lenses with a thin, discreet, and easy-to-wear lenses that delivers superior clarity. Your strong prescription does not have to limit your frame choice!

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Standard lenses that correct nearsightedness are often thicker at the edges, making it problematic for certain frame designs to support stronger prescriptions. These could even make your eyes appear smaller to other folks.
Because they are more brittle than normal lenses, they are not recommended for children or for playing sports. High index lenses are designed to be thinner than regular lenses, particularly at the edges. This allows people who have stronger prescriptions from which to choose a wider selection of eyeglass or sunglass frames than are for sale to thicker lenses. Regular eyeglass lenses correct your vision by bending light.
We offer 100% UVA/UVB Protective Sunglass Lenses with and without prescription. Transitions® Light Intelligent Lenses™ automatically adapt to changing light helping you to protect your eyes also to see better. They are clear indoors and darken outdoors based on the amount of sun light. All Transitions lenses block 100% of UV light and help protect against harmful blue. Single Vision Clear Ultra High Index 1.74 Lensesare made in-house, right in our Connecticut lab. Why
Due to these properties, it is the lens material of choice for children’s lenses, sports lenses, and safety lenses. High index lenses have a relatively lower Abbe value than other materials. Which means that the outer edges of one’s lenses will look more distorted than other standard lenses of the same prescription. Polycarbonate, as shown in the chart below, can be an exception. Tired of being recognised incorrectly as a mad scientist because of your strong eyewear prescription? If you’re worried your high prescription limits one to wearing thick and unfashionable lenses, we’ve got just the solution.

Canada-based BonLook produces their own type of frame styles. In the event that you shop online, you can utilize their virtual try-on tool and sizing guide to help with frame selection. They boast a strong online business, and also brick-and-mortar stores in 71 locations in 28 states in the United States. The most significant con of high index lenses is their higher price. High index lenses can correct an array of refractive errors, including nearsightedness , farsightedness , and astigmatism.

Typically, high index lenses are best for strong prescriptions that correct for nearsightedness , farsightedness , or astigmatism. The material used to generate these lenses give it a higher refractive index than regular CR-39 and glass lenses, allowing high index lenses to be made much thinner and lighter. Choose a lens material with a refractive index greater than 1.60. The higher the index of refraction, the thinner your lenses will undoubtedly be. Lenses with a refractive index of just one 1.67 and higher can be less than half the thickness of regular plastic lenses. Alternatively, polycarbonate lenses (index 1.59) may be only 20% thinner than regular plastic lenses. Choose progressive lenses if your prescription includes a reading addition AND you want your prescription glasses lenses for both distance and reading/computer vision.