How thick are Trivex lenses?
each of the lens material options confusing when you order new glasses? With seven different options at Zenni, it really is overwhelming in the event that you don’t know what you will need. The nice thing concerning the Zenni checkout is that whenever you enter your prescription, the website is configured to recommend the thinnest lens for the eyeglasses. Additionally, Trivex’s light transmittance is 91.4 percent, directly affecting the clarity, brightness, and crispness of one’s vision when wearing this lens material.
- But as our video showed, real-world tests may yield different results.
- Lens materials on the lower end of the range will make your glasses thicker.
- These lenses could be not even half the weight of regular glass
- It is a great choice for semi rimless and rimless frames due to its tensile strength.
Because these lenses tend to reflect more light, most opticians and eye doctors recommend adding an anti-reflective coating to reduce glare. Eyeglass Tyler compares the professionals and cons of two popular lens materials, Trivex and polycarbonate, to help you figure out which one is right for you personally. Selecting a small lens size frame may be the biggest determinant of lens thickness and weight!
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If you are interested in getting the thinnest, lightest lenses possible, there is no question that high index plastic is the better choice for you. It beats out all the lens materials for thinness, lightness, and aesthetics. Trivex is not too far behind, but in higher prescriptions there is absolutely no comparison.
Trivex may be the first tri-performance lens material; meaning it provides a triple combination of features never before within a single material. This breakthrough in technology is specifically made to deliver the most comprehensive performance of any lens material. It is extremely similar to Polycarbonate in its shatter resistance, but provides better optics, making it a good alternative.
because they’re newer and created from a specific form of plastic, Trivex lenses may not be available in all parts of the United States. Your vision insurance is probably not able to cover the price of this lens material. Also, eye miniaturization reduced on nearsighted corrections.
Cons Of Trivex Lenses
High index plastic has similar scratch resistance to Trivex. Glass lenses provide excellent optics, probably the most scratch resistant lens material and blocks UV light. However, glass lenses are heavy, thick and dangerous if broken and can’t be found in certain frame styles.
The properties inherent in this lens material ensure it is perfect for power correction between +2.00 to -2.00 , the number where most prescriptions fall within. Alternatively, polycarbonate lenses have an increased index of refraction than Trivex lenses (1.58 vs. 1.53). Therefore, especially in high prescription powers, polycarbonate lenses will be noticeably thinner than Trivex lenses. Still, Trivex lenses are thinner than regular plastic eyeglass lenses, which have a refractive index of 1 1.50.
the “refractive index” or the “index of refraction,” is the measurement of how efficiently the lens bends light. As the strength of your glasses prescription increases, the lenses tend to get heavier and thicker. While you are shopping for your next couple of glasses, you might see the term “lens index.” But just what does it mean, and which are the several types of lenses? Understanding the various numbers and how they relate with your eyesight is crucial when buying new glasses. For more information on eyeglass lenses, visit ABOUT Vision®.
Which Eyeglass Lenses Are Best For Me And My Vision?
However, unlike polycarbonate, Trivex comes with an Abbe value of 45, rendering it optically superior in writing. The tensile strength of Trivex makes it highly resistant to cracking around drill holes. Actually, Younger Optics guarantees its Trivex products for life, against stress fractures and drill mount cracking. This advantage of lens thinness is normally coupled with lightness in the sales process. That’s because thinness reduces lens volume and creates the final weight of the lens. However, the real lens weight is a function of volume and the material’s specific gravity.
