Highest Index Lenses Available
High index lenses create that significantly thinner edge we discussed above which means you can fit your lenses in any frame you like. High index corrective lenses bend light better than standard lenses, enabling a thinner, lighter lens option. This makes it easier to fit them inside regular frames and opens up a wider collection of glasses. The refractive index of eyeglass lenses ranges from about 1.50 to at least one 1.80. Lens materials on the lower end of the range can make your glasses thicker. The difference could be more noticeable the more nearsightedness or farsightedness you have.
With regular lenses, this can significantly magnify your eyes and may make you feel a bit self conscious at times. Aspheric lenses are created with flatter curves and have a noticeably slimmer profile than regular plastic lenses. Lens materials which have a refractive index greater than standard CR39 plastic (1.50) and regular glass (1.52) are believed high-index lenses.
- This enables your glasses to be as comfortable and fashionable as possible.
- Generally speaking, the higher the index of refraction of a lens material, the higher the cost.
- High-index lenses have reduced edge thickness for nearsightedness and reduced center thickness for farsightedness.
High-index lenses can improve lens comfort and appearance, and will even open the entranceway to a larger variety of frames. High-index lenses may be just the answer you have been searching for. High-index lenses contain a unique aspheric design which facilitates a flatter lens curvature, leading to reduced magnification and improved appearance. The image below compares the lens thickness of a normal plastic lens (1.50) to probably the most commonly prescribed high-index lenses.
Pair Eyewear
If you genuinely have a strong prescription, high index lenses will be your only chance at near distortion-free vision. They will also be the only solution to fit many strong prescription lenses into eyewear frames properly. High-index lenses can reflect around 50% more light than regular plastic lenses.
Also, it is important to know that high-index lenses are typically more fragile than regular lenses and have to be handled with a little more care. Before choosing high-index, speak with your eye doctor to determine if these lenses are necessary for your individual prescription. If you need high-index lenses contact a watch doctor near you to start out improving your vision.
Your plain English library for vision therapy, children’s vision, neuro-optometry, and primary eye care. High-index lenses have a refractive index above 1.50— ranging from 1.53 to 1.74. This index is adequate for correcting mild to moderate refractive errors, but is not as effective for the correction of higher refractive errors. Through her writing, Dr. Huang enjoys educating patients on how best to lead healthier and happier lives. She also has a pastime in Eastern medicine practices and studying integrative medicine.
One of my own patients, a pharmacist, threaded soft, red-rubber catheters onto his temples as a temporary cushion to keep comfort until he could return for a frame re-alignment. He left several inches of the catheters dangle below his earlobes instead of bothering to trim them shorter. Appearance was not near the top of his list, but comfort surely ranked high for him. Some patients have appearance as a high priority, but they won’t appear in your office wearing sweats or a flowered Hawaiian shirt as this pharmacist patient typically did. The way a patient speaks and just how he / she dresses and moves can give important clues to your patient’s priorities and potential tolerance to optical trade-offs.
Fog Free Lens Coating 2 Oz Pump Spray Bottle, #acc
They are easily considered the ultimate in lightweight lens technology and offer unparalleled clarity and sharpness alongside incredible durability. An excellent anti-reflective coating will eliminate 99% of reflections making the lenses nearly invisible . The AR coating is also a significant benefit at night as headlight reflections are significantly reduced increasing clarity and sharpness while driving. Again, for those of you that have had strong prescription leading to thick lenses, this is a real game changer as you’ll literally be lifting the weight of one’s glasses off of that person. Actually, high index lenses of 1 1.60 or more typically create a 25% – 50% reduction in overall lens weight in comparison to conventional lenses.
You can find out about how exactly we ensure our content is accurate and current by reading our editorial policy. If a person’s eye has an unusual curve, values are added for cylinder and axis.
What Is The Proper Weight For High Index Lenses?
A high-index lens can bend light rays more, while using less material in lenses created for both nearsighted and farsighted people . Polycarbonate lens material is the better choice for children, active adults, and activities. Polycarbonate lenses are virtually shatterproof, provide the best eye protection of any lens, and includes 100% UV protection inherently. If the sphere on your prescription is +/-3.00 or more, you should choose polycarbonate lenses. Polycarbonate lenses are very difficult lenses to tint and are not recommended for those who want custom dark sunglass lenses .
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