1.59 Polycarbonate Impact Resistant

Eye safety is important, but it goes away from prescription. The lenses have a natural blocker to prevent ultraviolet radiation from damaging your eyes. The UV protection, coupled with their durability, makes polycarbonate lenses perfect for people who are generally active outdoors.

Abbe value measures the dispersion of light for different eyeglass lens materials. Impact resistance sets them aside from other eyeglass lenses. This makes them an optimal choice for those who have active lifestyles that are more prone to dropping or scratching their eyeglasses. To further protect your eyeglasses from scratches, keep your glasses in a protective case if you are not wearing them. Also, never clean your lenses without first rinsing them with a cleaning solution or water.

Light Industry & Daily Use

Through her writing, Dr. Huang enjoys educating patients on how to lead healthier and happier lives. She also has an interest in Eastern medicine practices and studying integrative medicine.

• Today’s modern scratch-resistant coatings could make the top of polycarbonate and Trivex lenses nearly as hard as glass.
• High-index glass is an option in some situations but will not be addressed in this posting.
• High-index lenses) because these lightweight lens materials are relatively “soft” — which means they can absorb energy without lens fracturing.
• With prescriptions of this power, the reduced thickness with high-index will make-up for the increased weight.
• With regular lenses, this can significantly magnify your eyes and may make you feel a little self conscious at times.

Thinner, lighter lenses made of high index materials reflect around 50% more light than regular glass or plastic lenses (around 12% of available light). Essilor lenses are created by the world’s largest lens company making top quality lenses. All Essilor lenses are made in the U.S., to exacting specifications, within an Essilor laboratory. [newline]Eyezen is made by Essilor, the world’s largest maker of eyeglass lenses. Polycarbonate lenses tend to be expensive than traditional plastic glasses along with other eyewear, including some contact lenses. In fact, due to the high index plastic lens material, they are able to cost about two times a lot more than plastic lenses. Polycarbonate lenses can cost up to double the cost of regular eyeglasses.

Lens Color Type

According to this table, a lens with an index of just one 1.74 could be up to 50 percent thinner than a regular plastic lens with an index of 1 1.50, with the same optical prescription. The refractive index is the number that represents how efficiently a lens material bends light, and would depend on how quickly light travels through the material. Polycarbonate lenses are lighter and thinner, and could be more comfortable to wear without sacrificing quality. The quantity of darkening that most photochromic lenses undergo depends upon how much UV radiation they’re exposed to.

While high-index lenses could be beneficial for certain optical prescriptions, they are able to also become more expensive than regular lenses. Regular lenses for a strong farsightedness prescription can be quite heavy. High-index lenses however, don’t require just as much lens material and can result in longer lasting comfort. High-index lenses contain less material than regular lenses and so are therefore lighter and much more comfortable.

• Reduces the edge thickness for nearsighted (-) prescriptions and center thickness for farsighted (+) prescriptions. So deciding on the best one is paramount to making sure your brand-new glasses correctly fit that person. We’ll lay out the facts, put the lenses to the test, and try to put the question to rest. We need about 15~40 days to create the order which up to your quantity, and keep update the producing process to you in time. High-index lenses have a refractive index above 1.50— ranging from 1.53 to 1.74. A high-index lens could be recommended if your optical prescription is above 2.00 diopters. Melody Huang can be an optometrist and freelance health writer.
This can impact on vision, especially under low-light conditions, like when driving during the night. Lens reflections can also cause glare, further reducing vision in these situations. Whether you’re climbing Mount Everest or mountain biking in Colorado, you’re going to need sunglasses that may match you. If your prescription isn’t quite as extreme , polycarbonate is a superb choice. It’s lightweight, strong and the lenses generally cost less. Generally speaking,
And because they have a slim profile, aspheric lenses have less lens mass, making them much lighter. Aspheric lenses also provide superior peripheral vision compared with conventional lenses. Generally, lenses with an increased index of refraction will undoubtedly be thinner than lenses with a lower index. The refractive index of high index plastic lenses ranges from 1.53 to 1 1.74. Those in the range of just one 1.53 to 1 1.59 are about 20% thinner than regular plastic lenses, whereas 1.74 high index lenses are about half the thickness of regular plastic lenses.